Adult anthropometric measures, overweight and obesity 10 Rosie Sutton Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Summary ● This chapter reports on measurements relevant to obesity: body mass index (BMI), prevalence of overweight and obesity, and waist circumference. As well as interviewer measurements of height, weight and waist circumference, self-reported height and weight estimates are examined. ● Interviewer-measured mean height was 175.3cm for men and 161.9cm for women, and interviewer-measured mean weight was 83.9kg for men and 71.0kg for women. Self-reported mean height estimates were consistently higher, and mean weight estimates consistently lower than interviewer-measured estimates. ● Men consistently over-reported their height to a greater degree than women, with men estimating on average that they were 1.7cm taller than the measurement taken at the interviewer visit, and women estimating that they were 1.0cm taller. The opposite effect was apparent for weight, with women under-reporting their weight by an average of 2.4kg while men under-reported by 1.4kg. ● Body mass index (BMI), defined as weight in kilograms divided by the square of the height in metres (kg/m2), was used to assign adult participants into categories such as overweight and obese. Mean BMI was 27.2kg/m2 in men and 27.1kg/m2 in women, based on interviewer measures. Mean BMI calculated from self-reported height and weight was significantly lower, by an average of 0.9kg/m2 for men and 1.2kg/m2 for women. ● A similar proportion of men and women were obese (24% and 26% respectively), based on interviewer measures. However, a higher proportion of men than women was overweight (41% compared with 33%). Thus 65% of men and 58% of women were overweight or obese. ● Using self-reported estimates, 17% of men and 20% of women were obese. Thus there was a difference of 6 percentage points in the proportions who were obese based on self-reported figures rather than interviewer-measured. The majority of participants’ estimates placed them in the same BMI category as interviewer measures; however, almost a quarter of overweight men and a third of overweight women placed themselves in the ‘normal’ category by their own estimates, while a third of obese men and a quarter of obese women placed themselves in the overweight category by their own estimates. ● Mean waist circumference was 97.1cm in men and 88.5cm in women. A higher proportion of women than men had a raised waist circumference (47% and 34% respectively). Prevalence of a raised waist circumference increased substantially between the age groups 16-24 and 65-74 in both sexes. ● The age standardised prevalence of obesity and raised waist circumference was higher in households in lower quintiles than higher quintiles of equivalised household income for both men and women. There was a similar pattern for mean BMI and mean waist circumference among women, but not men. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 1 The prevalence of obesity increased with increasing levels of deprivation for both men and women. 22% of men and 19% of women in the least deprived quintile were obese, rising to 25% and 30% respectively in the most deprived quintile. However, the pattern was reversed for the prevalence of overweight, which was highest among both men and women living in the least deprived quintile. ● National Institute for Health and Clinical Excellence (NICE) guidelines recommend a combination of BMI and waist circumference to assess health risks from obesity. The guidelines define low, high and very high waist measurements for men and women. A high or very high waist circumference is associated with increased health risks for those with a BMI below 35kg/m2; health risks are very high for those with a BMI of 35 kg/m2 or more regardless of waist circumference. ● According to the NICE classification using combined categories of BMI and waist circumference, 18% of men were at increased risk, 15% at high risk and 21% at very high risk. The equivalent proportions for women were 15% at increased risk, 18% at high risk and 26% at very high risk. ● There has been a marked increase in the proportion who were obese between 1993 and 2011. 13% of men were categorised as obese in 1993, compared with 24% in 2011, and 16% of women were obese in 1993 compared with 26% in 2011. The rate of increase in obesity prevalence has been slower in the second half of the period than the first half, and there are indications that the trend may be flattening out over recent years. However, obesity in women in 2010 and 2011 was at its highest level since 1993. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved 2 ● 10.1 Introduction 10.1.1 Contents of the chapter The anthropometric measures presented in this chapter focus on measurements relevant to obesity for adults aged 16 and over. Height and weight data have been collected in each year of the Health Survey series, and waist circumference in most years. Interviewermeasured height and weight data were used to calculate body mass index (BMI); waist circumference was used to assess central obesity. In 2011 the Health Survey for the first time recorded self-reported height and weight, and these were used to calculate selfreported estimates of BMI, overweight and obesity. Many surveys rely on self report measures of height and weight which are known to be less accurate than interviewer-measured estimates. The HSE is one of a small number of surveys that records actual interviewer validated measures of height and weight. Comparisons between the two are rare; studies that have explored differences between self report and interviewer measures show self report measures to introduce an element of bias.1 The HSE 2011 therefore presented a good opportunity to make such comparisons, and to identify which groups of individuals may under- or over-estimate their height and weight when self-reporting. As well as presenting total data for adults for the various measures, the chapter includes breakdowns by age and sex, strategic health authority, equivalised household income and area deprivation. Participants are classified according to the National Institute for Health and Clinical Excellence (NICE) obesity categories for health risk using both BMI and waist circumference.2 There has been some exploration of the factors associated with obesity measures in previous HSE reports. The 2007 report included a regression analysis of the risk factors for those classified as ‘most at risk’ according to the NICE health risk categories;3 the 2006 report included a regression analysis exploring the risk factors associated with a raised waist circumference;4 and the 2003 report included a regression analysis of risk factors associated with overweight and obesity.5 10.1.2 Overweight and obesity as health issues Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Overweight and obesity are defined as abnormal or excessive fat accumulation that may impair health.6 Obesity is associated with an increased risk for a number of common causes of disease and death including diabetes, cardiovascular diseases and some cancers. For individuals classified as obese the risk of poor health increases sharply with increasing BMI.7 It is also evident that there are clear health inequalities in the prevalence and impact of obesity.8 Worldwide obesity is an increasing epidemic, and rates of obesity have more than doubled since 1980.6 England, along with the rest of the United Kingdom, has one of the highest rates of obesity within Europe.9 Trends from the HSE series show that nationally, prevalence of obesity has risen for all age groups between 1993 and 2010,10 although obesity trends may have started to flatten out more recently. The current prevalence of obesity is of public health concern not least because of the risk factors for disease and mortality. Alongside physical ill-health, high levels of obesity have been linked to some mental conditions, lower self esteem and reduced life prospects.11 Obesity also has a number of economic implications because of the disproportionate use of health care and associated expenditure.11 The recent white paper Healthy Lives, Healthy People: Our Strategy for Public Health in England estimates that excess weight costs the NHS more than £5bn each year.8,12 Successive governments have introduced a number of initiatives to tackle obesity in England; some of the most recent include the Responsibility Deal and the Change4Life campaign. The Public Health Responsibility Deal aims to work alongside businesses and organisations to improve public health13 while The Change4Life campaign encourages HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 3 families to become more physically active and make healthier food choices.14 In October 2011 the government published A call for action on obesity in England8 which renewed their commitment to reduce the level of excess weight by working with a range of partners on prevention and treatment. The call for action focuses on the idea that while physical activity is important to weight loss, calorie control is pivotal. The national priority proposed for adults is: ‘a downward trend in the level of excess weight averaged across all adults by 2020’.8 Part of the challenge in encouraging healthy lifestyles is the extent to which people are able to judge their own weight as being healthy. The Change4Life campaign suggests that as overweight becomes more common, it is even more likely to be seen as ‘normal’ and not a cause for concern.15,16 It is therefore particularly important to understand peoples’ perceptions of their own weight. Many large-scale epidemiological studies rely on selfreported BMI for monitoring and estimating prevalence of obesity. Studies have shown that although measured BMI and self-reported BMI correlate highly, self reports are systematically biased.1,17,18 Specifically, height is commonly over-reported while weight is often under-reported, with some variation according to age and sex. This chapter examines 2011 data in detail, and looks at trends in obesity and overweight since 1993. Trend data on adult and child obesity, and other key measures, can also be found in Health Survey for England 2011 trend tables on the Health and Social Care Information Centre website.19 10.2 Methods and definitions Methods Full details of the protocols for carrying out all the measurements are contained in Volume 2 of this report, Methods and Documentation, Appendix B, and are summarised briefly here. Height and weight were measured during the interviewer visit while waist and hip circumferences were measured during the nurse visit.20 Height Height was measured using a portable stadiometer with a sliding head plate, a base plate and connecting rods marked with a measuring scale. Participants were asked to remove their shoes. One measurement was taken, with the participant stretching to the maximum height and the head positioned in the Frankfort plane.21 The reading was recorded to the nearest millimetre. Participants who were pregnant, unable to stand or were unsteady on their feet were not measured. Weight New Class III Seca scales were introduced for the HSE 2011. These meet a higher specification than previous (Class IV) scales, and measure up to a maximum of 200kg, compared with the maximum of 130kg in the earlier models.22 For the weight measurement, participants were asked to remove their shoes and any bulky clothing. A single measurement was recorded to the nearest 100g. Participants who were pregnant, unable to stand, or unsteady on their feet were not weighed. Participants who weighed more than 200kg were asked for their estimated weight because the scales are inaccurate above this level. These estimated weights were included in the analysis. In the analysis of height and weight, data were excluded from those who were considered by the interviewer to have unreliable measurements, for example those who were too stooped or wearing excessive clothing. Self-reported height and weight Early in the interview participants were asked to report how tall they were without shoes, and how much they weigh without clothes or shoes. Participants could give measurements in either imperial or metric units, and these were converted to metric units if necessary 4 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved 10.2.1 (metres for height, kilograms for weight). If the participant did not know their height and/or weight or they were unwilling to provide this information the interviewer recorded this information. Waist circumference The waist was defined as the midpoint between the lower rib and the upper margin of the iliac crest. It was measured using a tape with an insertion buckle at one end. The measurement was taken twice, using the same tape (waist and hip measurements were alternated), and was recorded to the nearest millimetre. Those whose two waist measurements differed by more than 3cm had a third measurement taken. The mean of the two valid measurements (the two out of the three measurements that were the closest to each other, if there were three measurements) were used in the analysis. Participants were excluded from waist measurements if they reported that they were pregnant, had a colostomy or ileostomy, or were unable to stand. All those with measurements considered unreliable by the nurse, for example due to excessive clothing or movement, were also excluded from the analysis. Response to anthropometric measures Response rates to anthropometric measurements are shown in Table 10.1. 84% of men and 85% of women provided a valid height measurement, and 84% of both sexes a valid weight measurement. The response for all anthropometric measures was significantly lower among men and women aged 75 and over, reflecting a greater proportion that were unable to be measured, rather than unwillingness.23 Response to waist measurements was very high among every age group (98% of men and 97% of women). Table 10.1 10.2.2 Definitions Body mass index (BMI) In order to define overweight or obesity, a measurement is required that allows for differences in weight due to height. A widely accepted measure of weight for height, the body mass index (BMI), defined as weight in kilograms divided by the square of the height in metres (kg/m2), has been used for this purpose in the HSE series. BMI was calculated for all those participants for whom both a valid height and weight measurement were recorded. Adult participants were classified into the following BMI groups according to the WHO BMI classification.24 Table 10A Copyright © 2012, The Health and Social Care Information Centre. All rights reserved BMI (kg/m2) Less than 18.5 18.5 to less than 25 25 to less than 30 30 or more 40 or more Description Underweight Normal Overweight Obese Morbidly obese BMI categories of overweight and obese have frequently been combined to show the proportion who are either overweight or obese. As in previous years’ reports, a subset of the obese category has also been defined, namely those with morbid obesity (BMI 40kg/m2 or more), who are at highest risk of morbidity and mortality.25 Waist circumference BMI does not distinguish between mass due to body fat and mass due to muscular physique. It also does not take account of the distribution of fat. It has therefore been postulated that waist circumference may be a better measure than BMI or waist to hip ratio (WHR) to identify those with a health risk from being overweight.26 A raised waist circumference has been taken to be greater than 102cm in men and greater than 88cm in women, in accordance with the definition of abdominal obesity used by the HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 5 National Institutes of Health (USA) ATP (Adult Treatment Panel) III.27 These levels identified people at risk of the metabolic syndrome. It has been shown recently that these levels corresponded fairly closely to the 95th percentile of waist circumference for healthy people, indicating that few healthy people have a waist circumference above these thresholds.28 Combined assessment of health risk from obesity The 2006 NICE evidence-based guidelines include details on prevention, identification, assessment and management of overweight and obesity, with one aim being to increase health professionals’ awareness of how to manage overweight and obesity in primary care.2 The guidelines highlight the impact of overweight and obesity on risk factors for developing other long-term health problems such as coronary heart disease, Type 2 diabetes, osteoarthritis and some cancers. It states that risk of these co-morbidities should be identified using both BMI and waist circumference as assessment tools in those with a BMI less than 35kg/m2. The NICE guidance states that ‘waist circumference is a valid measure of abdominal fat mass and disease risk in individuals with a BMI less than 35. If BMI is 35 or more, waist circumference adds little to the absolute measure of risk provided by BMI’. The NICE categories are defined as follows: Table 10B BMI classification Normal weight (18.5 to less than 25kg/m2) Overweight (25 to less than 30kg/m2) Obesity I (30 to less than 35kg/m2) Obesity II (35 to less than 40kg/m2) Obesity III (40kg/m2 or more) Waist circumference Low High Very high No increased risk No increased risk Increased risk Very high risk Very high risk No increased risk Increased risk High risk Very high risk Very high risk Increased risk High risk Very high risk Very high risk Very high risk Source: NICE guidelines2 For men, low waist circumference in this classification is defined as less than 94cm, high as 94–102cm, and very high as greater than 102cm. For women, low waist circumference is less than 80cm, high is 80–88cm and very high is greater than 88cm. NICE also defines categories of Obesity II (35 to less than 40kg/m2) and Obesity III (40kg/m2 or more). For adults with a BMI of 35kg/m2 or more, risks are assumed to be very high with any waist circumference.2 10.3 Height and weight: interviewer-measured and self-reported estimates Table 10.2 shows interviewer-measured and self-reported mean height and mean weight by age and sex. Interviewer-measured mean height was 175.3cm for men and 161.9cm for women. It was highest in the 16-44 age group for both men and women, and began to decrease slightly with increasing age after this, with a slightly steeper drop for the oldest group (169.5m and 156.4m respectively for men and women aged 75 and over). Interviewer-measured mean weight was 83.9kg for men and 71.0kg for women; weight varied by age, being significantly lower in the youngest and oldest age groups for both men and women, and peaking in the 45-54 age group. Self-reported measures of mean height and mean weight reflected similar patterns to the interviewer measures of mean height and weight. However, mean height estimates were consistently higher, and mean weight estimates consistently lower than interviewermeasured estimates. 6 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Note that these combined measures (shown in Table 10.12) are based on all adults with valid height, weight and also waist circumference measurements. The data may therefore vary slightly from those presented in Table 10.3 for mean BMI and BMI categories which are based on adults with valid height and weight measurements. Figure 10A shows the comparison of interviewer-measured and self-reported mean height for men and women according to age. Men consistently over-reported their height to a greater degree than women, with men estimating on average that they were 1.7cm taller than the measurement taken at the interviewer visit, and women estimating that they were 1.0cm taller. There was some variation with age: the gap between self-reported and interviewer-measured height was smaller among younger adults, but began to widen out from around the 55-64 age group. Among those aged 75 and over, on average men estimated that they were more than 4cm taller than their measured height, and women that they were more than 3cm taller. Figure 10A Mean height, by age and sex: interviewer-measured and self-reported Men: Measured Men: Self-reported Women: Measured Women: Self-reported Base: Aged 16 and over 190 185 Mean height (cm) 180 175 170 165 160 155 150 145 140 16 21 26 31 36 41 46 51 56 61 66 71 76 81 86 91 Age (years) Figure 10B shows how interviewer-measured and self-reported mean weight varied according to age for men and women, and this time it can be seen that women were less likely than men to estimate accurately. Overall women under-reported their weight by an average of 2.4kg while men under-reported by 1.4kg. Again there was some variation in the difference between interviewer-measured and self reported weight by age group. Among men, the average gap between measured and self-reported weight was widest among those aged 55-74 (1.8kg) and narrowest among those aged 25-44 (between 0.7kg and 1.1kg). Among women, the widest gap was in the youngest age group (3.0kg on average), while those aged 55-74 estimated the most accurately on average (with a gap of 1.7kg to 1.9kg). Table 10.2, Figures 10A, 10B Mean weight, by age and sex: interviewer-measured and self-reported Men: Measured Men: Self-reported Women: Measured Women: Self-reported Base: Aged 16 and over 100 95 90 Mean weight (kg) Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Figure 10B 85 80 75 70 65 60 55 50 16 21 26 31 36 41 46 51 56 61 66 71 76 81 86 91 Age (years) HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 7 10.4 Prevalence of obesity, overweight and raised waist circumference Prevalence of obesity, overweight and raised waist circumference, by age and sex Table 10.3 shows mean BMI and BMI status by age and sex, with estimates based both on interviewer measurements and self-report. Interviewer-measured estimates are examined first. Interviewer-measured estimates Mean BMI was similar for men and women (27.2kg/m2 and 27.1kg/m2 respectively). Mean BMI rose with age during young adulthood, changing little in middle and older age (Figure 10C). A similar proportion of men and women were obese (24% and 26% respectively). However, a higher proportion of men than women was overweight (41% compared with 33%). Thus 65% of men and 58% of women were overweight or obese, and a lower proportion of men than women had a BMI in the normal range (34% and 39% respectively). Figure 10C shows the prevalence of overweight and obesity by age group. Among both men and women, prevalence of overweight and obesity was lowest in the 16-24 age group, and generally increased in the older groups, but as with mean BMI prevalence was slightly lower among those aged 75 and over. Table 10.3, Figure 10C Figure 10C Prevalence of overweight and obesity, by age and sex: interviewer-measured Overweight Obese Base: Aged 16 and over with valid height and weight measurements Men 90 80 70 Percent 60 50 40 30 20 10 0 16-24 25-34 35-44 45-54 55-64 65-74 75+ 55-64 65-74 75+ Women 90 80 70 60 50 40 30 20 10 0 16-24 25-34 35-44 45-54 Age group 8 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Age group Percent 10.4.1 Comparison with self-reported estimates Section 10.3 showed that self-reported estimates of height and weight were often inaccurate, with both sexes tending to over-estimate their height and under-estimate their weight; men particularly tended to over-estimate height and women to under-estimate their weight. The effect of these inaccurate estimates leads to under-estimation of BMI, and therefore to under-representation of the proportion who are overweight or obese. The comparison of interviewer-measured and self-reported mean BMI shows a significant difference of 0.9kg/m2 for men and 1.2kg/m2 for women. The biggest difference between the estimates was for the oldest age group, with mean BMI according to self-report being 1.9kg/m2 lower among men and 2.0kg/m2 lower among women aged 75 and over. Among women in younger age groups there was little variation, with self-reported mean BMI between 1.0kg/m2 and 1.2kg/m2 lower than measured. Among younger men, however, there was more variation, with the smallest difference for men aged 25-34 (0.4kg/m2), and a steady increase up to the 65-74 age group (1.4kg/m2). Using self-reported estimates, 17% of men and 20% of women were obese, and a further 40% and 34% respectively were overweight. Thus there was a difference of 6 percentage points in the proportions of both men and women who were obese based on self-reported figures rather than interviewer-measured. The proportions classified as overweight were in fact similar in both cases, but did not represent the same groups of individuals. The pattern of under-reporting of obesity and overweight is more clearly depicted in Table 10.7, which cross-tabulates self-reported and interviewer-measured BMI status. The majority of participants’ estimates placed them in the same BMI category as interviewer measures: 94% of men and 98% of women who were not overweight, 74% of men and 66% of women who were overweight and 67% of men and 73% of women who were obese. However, almost a quarter of overweight men and a third of overweight women placed themselves in the ‘normal’ category by their own estimates, while a third of obese men and a quarter of obese women placed themselves in the overweight category by their own estimates. Interestingly, more obese women than men gave estimates which positioned them as in the correct category (even if with some under-estimation), whereas more overweight men than women did so. It is clear that estimates of obesity based on self-reported measures were significantly lower than estimates based on measurements, with different patterns of under-reporting based on sex and age. Nevertheless, many of those who were overweight or obese did give estimates which placed them in the appropriate BMI category. The widest gaps in estimates, among adults aged 75 and over, may reflect substantial under-estimation of their height loss with age, while the degree to which they under-estimated their weight was less than among some younger or middle aged adults. Tables 10.3, 10.7 Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Waist circumference Table 10.8 shows mean waist circumference and the prevalence of a raised waist circumference by age and sex. Mean waist circumference was 97.1cm in men and 88.5cm in women, and increased with age in both men sexes. Women were significantly more likely than men to have a raised waist circumference (47% and 34% respectively). As with mean waist circumference, prevalence of a raised waist circumference increased substantially with age (from 10% of men and 24% of women aged 16-24 to 57% of men and 67% of women aged 75 and over). Table 10.8 10.4.2 Prevalence of obesity, overweight and raised waist circumference, by strategic health authority Table 10.4 presents the interviewer-measured observed and age-standardised prevalence of overweight and obesity by strategic health authority (SHA). The variation in mean BMI by SHA was marginally statistically significant, with slightly lower means for both men and women in London and South Central SHAs than in other regions. However, there was no significant variation for prevalence of obesity or overweight. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 9 The distribution of waist circumference by SHA is presented in Table 10.9. As for obesity, there was no significant variation by SHA in the distribution of age-standardised mean waist circumference, nor in the age-standardised prevalence of raised waist circumference. Tables 10.4, 10.9 10.4.3 Prevalence of obesity, overweight and raised waist circumference by equivalised household income Mean BMI Table 10.5 shows age-standardised BMI by equivalised household income (interviewermeasured). For women, mean BMI was higher in the two lowest income quintiles (28.0kg/m2 in each) and lower in highest two income quintiles (26.4kg/m2 and 26.5kg/m2). Mean BMI did not vary significantly by income in men. Obesity and overweight Table 10.5 and Figure 10D show how the prevalence of overweight and obesity varied by equivalised household income (based on interviewer measures). The prevalence of obesity followed a pattern similar to that for mean BMI among women; obesity for both men and women was lower in the highest two quintiles (ranging from 20% to 22%), and higher in the lower three income quintiles (ranging between 25% and 32%). Among men, the prevalence of overweight increased with increasing income, in the opposite direction from obesity, rising from 33% in the lowest income quintile to 48% in the highest quintile. Among women, the prevalence of overweight varied relatively little by income. Thus overall, the prevalence of overweight including obesity among men was lowest in the lowest income quintile, and at a similar level in the remaining four quintiles, while among women it was lowest in the highest two income quintiles, and similar in the lowest three. The prevalence of obesity based on self-reported estimates followed the same pattern as for interviewer-measured estimates, being lower in the highest two quintiles of equivalised household income than in the lower three quintiles. Table 10.5, Figure 10D Waist circumference The prevalence of a raised waist circumference varied significantly by equivalised household income, again following a similar pattern to that for raised waist circumference and obesity. The prevalence was highest in the lowest two income quintiles (37% to 39% for men, 55% in each for women) and lowest in the highest two quintiles of (31% to 35% for men, 39% in each for women). Table 10.10 10.4.4 Prevalence of obesity, overweight and raised waist circumference by Index of Multiple Deprivation The impact of area deprivation was examined by looking at mean BMI, obesity prevalence and waist circumference by quintiles of the Index of Multiple Deprivation (IMD). Table 10.6 shows that there was an inverse relationship between mean BMI and area deprivation. Women in the least deprived two quintiles had lower mean BMI (26.5 kg/m2 26.7 kg/m2 respectively) than those living in the most deprived quintile (27.7kg/m2). There was no such pattern for men. The prevalence of obesity increased with increasing levels of deprivation for both men and women. 22% of men and 19% of women in the least deprived quintile were obese, rising to 25% and 30% respectively in the most deprived quintile. The prevalence of overweight was highest among both men and women living in the least deprived quintile (47% among men 10 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Table 10.10 shows how age-standardised mean waist circumference and the prevalence of a raised waist circumference varied by equivalised household income. For women, the pattern was similar to that for mean BMI and obesity, with highest mean waist circumference in the lowest two income quintiles (90.3cm to 90.9cm), and lowest means in the highest two income quintiles (86.0cm to 86.2cm). There was little variation in mean waist circumference by equivalised household income in men. Figure 10D Prevalence of overweight and obesity, by equivalised household income and sex Overweight Obese Base: Aged 16 and over with valid height and weight measurements Men 80 70 60 Percent 50 40 30 20 10 0 Highest 2nd 3rd 4th Lowest Equivalised household income quintile Women 80 70 60 Percent 50 40 30 20 10 0 Highest 2nd 3rd 4th Lowest Equivalised household income quintile Copyright © 2012, The Health and Social Care Information Centre. All rights reserved and 37% among women). Among men, overweight decreased consistently across quintiles, to 34% in the most deprived quintile, while among women, overweight varied less in the four more deprived quintiles of IMD. Table 10.11 shows that for mean waist circumference and for the prevalence of a raised waist circumference, the pattern across quintiles of IMD went in different directions for men and women. For men, mean waist circumference was slightly higher in the two least deprived quintiles (97.8cm and 97.9cm) than in the most deprived quintile (95.7cm). Among women, the lowest mean waist circumference was found in the least deprived quintile (87.0cm), and those in the three most deprived quintiles had higher mean waist circumference (88.9cm to 89.8cm). As Figure 10E shows, a similar pattern was observed for prevalence of a raised waist circumference, increasing from most deprived to least deprived quintile among men (31% to 37%), and from least deprived to most deprived among women (43% to 51%). Tables 10.6, 10.11, Figure 10E 10.5 Health risk category with obesity, overweight and waist circumference NICE recommends using both BMI and waist circumference as assessment tools to identify the risk of co-morbidities; different levels of health risk have been defined for different combinations of these two measures (as outlined in section 10.2.2). The NICE guidance states that for those with a BMI of 35 or more, waist circumference adds little to the absolute measure of risk provided by BMI.2 Table 10.12 shows the proportion by age and HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 11 Figure 10E Prevalence of raised waist circumference, by Index of Multiple Deprivation and sex Men Women Base: Aged 16 and over with a valid waist measurement 60 50 Percent 40 30 20 10 0 Least deprived 4th 3rd 2nd Most deprived Index of Multiple Deprivation quintile sex that were in different health risk categories, as determined by these two measures. Using combined categories of BMI and waist circumference to assess risk, 18% of men were at increased risk, 15% at high risk and 21% at very high risk. The equivalent proportions for women were 15% at increased risk, 18% at high risk and 26% at very high risk. Around half of men and two in five of women were not at increased risk (47% and 41% respectively). Figure 10F Prevalence of risk category based on BMI and waist circumference, by age and sex Base: Aged 16 and over with valid height, weight and waist measurements Men Not applicable No increased risk Increased risk High risk Very high risk 100 90 80 Percent 70 60 50 40 30 20 10 0 16-24 25-34 35-44 45-54 55-64 65-74 75+ 55-64 65-74 75+ Women 100 90 80 Percent 70 60 50 40 30 20 10 0 16-24 12 25-34 35-44 45-54 Age group HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Age group Figure 10F shows the risk categories by age. The proportion of those at high or very high risk generally increased with age up to the 65-74 age group. Those who were overweight and had a high waist circumference were defined as being at increased risk of health problems from obesity. This category also included the very small proportions who were normal weight but with a very high waist circumference (fewer than 1% of men and 3% of women), or obese I but with a low waist circumference (fewer than 1% of both men and women). Among men and women, the prevalence of increased risk was lowest among those aged 16-24 and generally increased in the middle age groups (20% to 22% among men, 14% to 18% among women aged 35-74); the proportion was also relatively high among women aged 75 and over (19%). Those who were overweight with a very high waist circumference (13% of men and 17% of women) were defined as being at high risk of health problems. In addition small proportions that were in the obesity I group with a high waist circumference (2% of men and 1% of women) were also defined as high risk. Prevalence of this risk category increased with age up to the age group 65-74. As indicated above, those who were obese (category I) had increased health risks, even with a low waist circumference (less than 1% of men and women). 2% of men and 1% of women were categorised as obese I with a high waist circumference (high risk). A further 14% of men and 16% of women were categorised as obese I with a very high waist circumference (very high risk). People who were obese II or III (BMI 35 and over) are defined as being at very high risk of health problems, regardless of their waist circumference. 5% of men and 7% of women were in the obese II group; 2% of men and 3% of women were in the obese III group. Table 10.12, Figure 10F 10.6 Trends in obesity and overweight Mean BMI and prevalence of obesity increased significantly in both sexes between 1993 and 2011.19 Mean BMI increased from 25.9kg/m2 in 1993 to 27.2kg/m2 in 2011 among men, and from 25.7kg/m2 in 1993 to 27.1kg/m2 in 2011 among women. Among both men and women, there has been little change in mean BMI over the last five or six years. Figure 10G shows the trends in obesity and overweight including obesity from 1993 to 2011, using three year moving averages to smooth out any unusually high or low values in individual years. Figure 10G Overweight and obesity prevalence, 1993-2010, by sex (three year moving averages) 70 60 50 Percent Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Base: aged 16 and over with valid height and weight measurements Men obese Men overwt incl obese Women obese Women overwt incl obese 40 30 20 10 0 19 19 19 19 19 19 19 20 20 20 20 20 20 20 20 20 20 20 20 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 Year (mid year moving average) Note: Data from 2003 onwards are weighted for non-response. In these moving averages, some points combine weighted and unweighted data. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 13 There has been a marked increase in the proportion who were obese (BMI 30kg/m2 or over) between 1993 and 2011. 13% of men were categorised as obese in 1993, compared with 24% in 2011, and 16% of women were obese in 1993 compared with 26% in 2011. The rate of increase in obesity prevalence has been slower in the second half of the period than the first half, and there are indications that the trend may be flattening out over recent years. However, obesity in women in 2010 and 2011 was at its highest level since 1993. Among men and women, the proportion who were overweight (BMI 25 to less than 30kg/m2) has changed very little between 1993 and 2011, fluctuating between 41% and 47% in men and between 31% and 34% in women. Table 10.13, Figure 10G 10.7 Health status by obesity, overweight and waist circumference 10.7.1 Hypertension Table 10.14 shows how survey-defined hypertension varies according to BMI status. Hypertension is defined as those with systolic blood pressure of 140mmHg or above or diastolic blood pressure of 90mmHg or above, or taking medication specifically prescribed to treat high blood pressure (see Chapter 3). This includes people with doctor-diagnosed hypertension (whether controlled so that it was below the target threshold, or uncontrolled and above the threshold) and those with untreated hypertension. Those who were obese were considerably more likely to have hypertension (53% of men and 44% of women) than those with normal BMI (16% and 14% respectively). People who were overweight fell between these two groups, with 32% of overweight men and 28% of overweight women having hypertension. The proportion of obese people with controlled hypertension was similar to the proportion with undiagnosed hypertension. The picture was a little different among those who were overweight, where more had undiagnosed than controlled hypertension. This suggests that obese people were slightly more likely than overweight people to have doctor-diagnosed hypertension. There was a similar pattern for hypertension according to waist circumference. 52% of men and 42% of women with a raised waist circumference had hypertension, compared with 20% and 15% respectively among those who did not have a raised waist circumference. Again there is some evidence that hypertension may be diagnosed more readily in those with ‘central obesity’ in the form of a raised waist circumference. Similar proportions had controlled and undiagnosed hypertension among people with raised waist circumference, while among those with a normal waist, a slightly higher proportion had undiagnosed than controlled hypertension. Tables 10.14, 10.15 Longstanding illness Participants were asked whether they had any longstanding illnesses or conditions, and if so, whether these limited their activities in any way. Those who were obese were considerably more likely than those of normal BMI to report at least one limiting longstanding illness (30% of obese men and 34% of obese women, compared with 14% and 16% respectively among those of normal BMI). People who were overweight were slightly more likely than those of normal weight to have a limiting longstanding illness (18% of men, 23% of women). Both those who were obese and those who were overweight were a little more likely than those of normal BMI to have a non-limiting longstanding illness. However, there was less difference between those who were obese (23% of men, 21% of women) and overweight (20% and 19% respectively). There was a similar relationship between limiting longstanding illness and waist circumference. A higher proportion of those with a raised waist circumference had a limiting longstanding illness (24% of men, 29% of women) than those who did not have a raised 14 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved 10.7.2 circumference (17% and 19%). However, the proportions with non-limiting longstanding illness were similar across the two groups (among men, 22% who were obese, 18% overweight, and among women 20% who were obese, 17% overweight). Tables 10.16, 10.17 References and notes The author would like to acknowledge with thanks the contribution of the National Obesity Observatory to this chapter. 1 Tipping S, Hope S, Pickering K et al. An analysis of mode effects using data from the Health Survey for England 2006 and the Boost Survey for London. Health and Social Care Information Centre, Leeds, 2008. 2 National Institute for Health and Clinical Excellence. Obesity: guidance on the prevention, identification, assessment and management of overweight and obesity in adults and children. NICE, London, 2006. [On-line] www.nice.org.uk/guidance/CG43 page 4 (Accessed 20/08/2012). 3 Tabassum F. Adult anthropometric measures, overweight and obesity. Chapter 3 in Craig R, Shelton N (eds). Health Survey for England 2007. Volume 1: Healthy lifestyles: knowledge, attitudes and behaviour. Health and Social Care Information Centre, Leeds, 2008. 4 Hirani V, Ali A. BMI, overweight, and obesity. Chapter 5 in Craig R, Mindell J (eds). Health Survey for England 2006, Volume 1: Cardiovascular disease and risk factors in adults. Health and Social Care Information Centre, Leeds, 2008. 5 Hirani V. Anthropometric measures, overweight and obesity. Chapter 6 in Primatesta P, Erens B, Prior G (eds). Health Survey for England 2003. The Stationery Office, London, 2005. 6 World Health Organisation. Fact Sheet No 311 Obesity and Overweight. WHO 2012. [Online] www.who.int/mediacentre/factsheets/fs311/en/index.html (Accessed 22nd August 2012) 7 Butland B, Jebb S, McPherson K et al. Tackling Obesities: Future Choices – Project report. Government Office for Science, London, 2007. 8 Department of Health. Healthy lives, healthy people: a call to action on obesity in England. HMSO, London, 2011. www.dh.gov.uk/en/Publicationsandstatistics/Publications/PublicationsPolicyAndGuidance/DH_130401 (Accessed 22nd August 2012) 9 European Commission, Eurostat. Overweight and obesity – BMI statistics. 2011. http://epp.eurostat.ec.europa.eu/statistics_explained/index.php/Overweight_and_obesity__BMI_statistics (Accessed 19th October 2012) 10 www.ic.nhs.uk/pubs/hse10trends 11 Sassi, F. Obesity and the Economics of Prevention, Fit not Fat. OECD 2010. 12 HM Government. Healthy Lives, Healthy People: Our Strategy for Public Health in England. HMG, London, 2010. www.dh.gov.uk/prod_consum_dh/groups/dh_digitalassets/documents/digitalasset/dh_127424.pdf (Accessed 19th October 2012) 13 Department of Health. Public Health Responsibility Deal. DH, London, 2012. www.dh.gov.uk/health/category/policy-areas/public-health/phrd/ (Accessed 23rd August 2012) Copyright © 2012, The Health and Social Care Information Centre. All rights reserved 14 Change4Life. Department of Health, London, 2012. www.nhs.uk/Change4Life/Pages/change-for-life-adults.aspx www.dh.gov.uk/prod_consum_dh/groups/dh_digitalassets/documents/digitalasset/dh_127424.pdf (Accessed 19th October 2012) 15 Johnson F, Cooke L, Croker H and Wardle J. Changing perceptions of weight in Great Britain: comparison of two population surveys. BMJ 2008;337:494. 16 Department of Health. Change4Life Marketing Campaign. In support of Healthy Weight, Healthy Lives. DH, London, 2009. www.nhs.uk/Change4Life/supporterresources/downloads/Change4Life_Marketing%20Strategy_April09.pdf (Accessed 19th October 2012) 17 Keith SW, Fontaine KR, Pajewski NM et al. Use of self-reported height and weight biases the body mass index-mortality association. International Journal of Obesity. 2011;35:401-8. 18 Merrill RM, Richardson JS. Validity of Self-Reported Height, Weight, and Body Mass Index: Findings from the National Health and Nutrition Examination Survey, 2001-2006. Preventing Chronic Disease. 2009;6:110. 19 www.ic.nhs.uk/pubs/hse11trends 20 This chapter includes results of waist circumference measurements but not waist:hip ratios; details of how hip circumference was measured are therefore not included in this chapter, but can be found in Volume 2 Appendix B of this report. 21 The Frankfort Plane is an imaginary line passing through the external ear canal and across the top of the lower bone of the eye socket, immediately under the eye. A participant’s head is positioned so that the HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 15 Frankfort Plane is horizontal. In this position the headplate of the stadiometer will rest on the crown of the head. 22 In May 2008 and again in March 2010, the Department of Health issued an alert regarding the need to use Class III scales in certain settings; these include all measurements of those under the age of 18. The National Child Measurement Programme (NCMP) moved to using Class III scales, since it was monitoring children’s weight, and it was decided that scales in the HSE should also conform to this standard. Class III scales are manufactured to a more stringent standard of accuracy, and can provide accurate measurements up to 200kg. www.dhsspsni.gov.uk/mdea_ni_2008-036.pdf (Accessed 19th October 2012) 23 See Tables 6-8 in Volume 2 of this report for reasons for non-response to measurements. Craig R, Mindell J (eds). Health Survey for England 2011: Volume 2. Methods and documentation. Health and Social Care Information Centre, Leeds, 2011. www.ic.nhs.uk/pubs/hse11report 24 World Health Organisation body mass index (BMI) classification. www.who.int/bmi/index.jsp?introPage=intro_3.html (Accessed 20/08/2012) 25 NHS Consensus Development Conference. Gastrointestinal surgery for severe obesity. Nutrition. 1996;12:397-402. 26 Lean M, Han T, Morrison C. Waist circumference as a measure for indicating need for weight management. BMJ 1995;311:158-161. 27 National Institutes of Health. Third Report of the National Cholesterol Education Program Expert Panel on Detection, Evaluation and Treatment of High Blood Cholesterol in adults (Adult Treatment Panel III). NIH Publication 01-3670. NIH, Bethesda, Md, 2001. 16 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved 28 Flegal KM. Waist circumference of healthy men and women in the United States. Int J Obes. 2007;31: 1134-9. Tables 10.1. Response to anthropometric measurements, by age and sex 10.15. Hypertension categories (age-standardised), by waist circumference and sex 10.2. Interviewer-measured and self-reported mean height and weight, by age and sex 10.16. Longstanding illness (age-standardised), by interviewer-measured body mass index (BMI) status and sex 10.3. Interviewer-measured and self-reported body mass index (BMI), overweight and obesity prevalence, by age and sex 10.17. Longstanding illness (age-standardised), by waist circumference and sex 10.4. Interviewer-measured and self-reported body mass index (BMI), overweight and obesity prevalence (observed and age-standardised), by strategic health authority and sex 10.5. Interviewer-measured and self-reported body mass index (BMI), overweight and obesity prevalence (age-standardised), by equivalised household income and sex 10.6. Interviewer-measured and self-reported body mass index (BMI), overweight and obesity prevalence (age-standardised), by Index of Multiple Deprivation and sex 10.7. Comparison of self-reported and interviewermeasured BMI status (age-standardised), by sex 10.8. Waist circumference, by age and sex Copyright © 2012, The Health and Social Care Information Centre. All rights reserved 10.9. Waist circumference (observed and agestandardised), by strategic health authority and sex 10.10. Waist circumference (age-standardised), by equivalised household income and sex 10.11. Waist circumference (age-standardised), by Index of Multiple Deprivation and sex 10.12. Health risk category associated with overweight and obesity based on body mass index (BMI) and waist circumference, by age and sex 10.13. Trends in overweight and obesity prevalence, 1993 to 2011, by age and sex 10.14. Hypertension categories (age-standardised), by interviewer-measured body mass index (BMI) status and sex Notes on the tables 1. The group on which the figures in the table are based is stated at the upper left corner of the table. 2. The data in most tables have been weighted. See Chapter 7, Volume 2 of this report for more detail. Both unweighted and weighted sample sizes are shown at the foot of each table. 3. Apart from tables showing age breakdowns, data have been age-standardised to allow comparisons between groups after adjusting for the effects of any differences in their age distributions. See Chapter 8.3.3, Volume 2 of this report for more detail. 4. The following conventions have been used in tables: - no observations (zero value) 0 non-zero values of less than 0.5% and thus rounded to zero [ ] used to warn of small sample bases, if the unweighted base is less than 50. If a group’s unweighted base is less than 30, data are normally not shown for that group. 5. Because of rounding, row or column percentages may not add exactly to 100%. 6. ‘Missing values’ occur for several reasons, including refusal or inability to answer a particular question; refusal to co-operate in an entire section of the survey (such as the nurse visit or a self-completion questionnaire); and cases where the question is not applicable to the participant. In general, missing values have been omitted from all tables and analyses. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 17 Table 10.1 Response to anthropometric measurements, by age and sex Aged 16 and over who were interviewed/had a nurse visit Proportion providing valid measurements 2011 Age group Total 16-24 25-34 35-44 45-54 55-64 65-74 75+ % % % % % % % % 83 81 81 98 86 84 84 99 84 85 83 98 85 85 84 98 86 87 85 97 84 87 84 97 73 80 73 95 84 84 83 98 87 85 84 98 88 87 86 98 88 84 84 98 87 83 83 97 86 84 84 97 84 85 82 97 70 77 69 95 85 84 82 97 370 199 546 327 677 433 666 431 628 452 504 367 419 273 3810 2482 482 467 280 726 677 450 835 813 563 823 822 557 769 769 567 609 609 433 536 536 328 4780 4693 3178 Men Height Weight BMI Waist circumference Women Height Weight BMI Waist circumference Bases (unweighted) Men Height, weight, BMI (interviewed) Waist circumference (saw nurse) Women Height (interviewed) Weight, BMI (interviewed)a Waist circumference (saw nurse)a 18 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved a Excluding pregnant women. Table 10.2 Interviewer-measured and self-reported mean height and weight, by age and sex Aged 16 and over 2011 Age group Mean height (m) and weight (kg) Total 16-24 25-34 35-44 45-54 55-64 65-74 75+ 176.8 177.1 176.6 175.4 174.2 173.1 169.5 0.41 0.37 0.34 0.34 0.36 0.35 0.44 0.17 178.3 178.1 177.9 177.0 176.2 175.7 173.7 177.0 Standard error of the mean 0.44 0.34 0.34 0.33 0.32 0.32 0.37 0.16 Mean weight (kg) Interviewer-measured 75.1 82.7 85.0 88.4 87.5 85.6 80.5 83.9 Standard error of the mean 1.02 0.88 0.64 0.79 0.76 0.64 0.78 0.35 Self-reported 73.5 82.0 83.9 86.9 85.7 83.8 79.2 82.5 Standard error of the mean 0.86 0.77 0.60 0.71 0.72 0.63 0.68 0.31 163.9 163.7 163.2 162.4 160.8 159.4 156.4 161.9 0.34 0.29 0.26 0.26 0.25 0.29 0.33 0.12 164.4 164.2 164.0 163.0 162.2 160.8 159.7 162.9 Standard error of the mean 0.36 0.28 0.26 0.27 0.26 0.33 0.31 0.12 Mean weight (kg) Interviewer-measured 65.3 70.2 72.7 74.3 72.6 71.7 68.8 71.0 Standard error of the mean 0.82 0.65 0.68 0.66 0.59 0.66 0.68 0.30 Self-reported 62.3 67.5 70.3 71.7 70.9 69.8 66.3 68.7 Standard error of the mean 0.74 0.57 0.60 0.61 0.54 0.61 0.55 0.27 313 359 307 335 474 539 470 524 579 669 584 650 569 661 572 637 538 623 545 605 423 502 437 492 307 414 336 400 3203 3767 3251 3643 426 458 403 414 644 707 593 680 734 825 691 764 720 820 692 755 658 766 643 726 510 608 518 580 377 526 412 497 4069 4710 3952 4416 526 617 515 578 610 704 601 686 640 751 648 728 619 725 623 702 528 609 535 592 366 432 378 422 235 318 257 307 3524 4155 3558 4014 536 590 509 538 608 675 557 649 673 759 631 705 644 739 617 679 550 637 537 604 399 475 403 452 315 438 343 412 3725 4312 3599 4037 Men Mean height (m) Interviewer-measured Standard error of the mean Self-reported 175.3 Women Mean height (m) Interviewer-measured Standard error of the mean Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Self-reported Bases (unweighted) Men Interviewer-measured heighta Self-reported height Interviewer-measured weighta Self-reported weight Women Interviewer-measured heighta Self-reported height Interviewer-measured weighta Self-reported weight Bases (weighted) Men Interviewer-measured heighta Self-reported height Interviewer-measured weighta Self-reported weight Women Interviewer-measured heighta Self-reported height Interviewer-measured weighta Self-reported weight a Based on those with valid height measurement or valid weight measurement. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 19 Table 10.3 Interviewer-measured and self-reported body mass index (BMI), overweight and obesity prevalence, by age and sex Aged 16 and over 2011 BMI (kg/m2) and BMI status (%)a Age group Total 16-24 25-34 35-44 45-54 55-64 65-74 75+ Interviewer-measured Mean BMI (kg/m2) 24.0 26.2 27.1 28.6 28.6 28.5 28.1 27.2 Standard error of the mean 0.28 0.24 0.19 0.21 0.24 0.21 0.24 0.10 % Underweight 6 % Normal 62 % Overweight 23 % Obese, excluding morbidly obese 8 % Morbidly obese 1 % Overweight, including obese 32 % Obese 9 Self-reported Mean BMI (kg/m2) 23.2 2 42 39 16 1 56 17 1 31 48 19 2 68 21 0 23 44 30 2 77 32 25 44 29 3 75 31 0 20 49 29 1 80 30 0 24 47 28 1 76 29 1 34 41 22 2 65 24 25.8 26.5 27.7 27.6 27.1 26.2 26.3 Standard error of the mean 0.24 0.21 0.18 0.20 0.21 0.20 0.19 0.09 7 69 17 6 1 23 7 1 48 35 16 1 51 16 1 38 47 13 2 61 14 0 29 46 22 2 71 24 0 31 46 22 2 69 23 1 30 48 21 1 69 22 2 41 43 15 58 15 2 41 40 16 1 58 17 Interviewer-measured Mean BMI (kg/m2) 24.2 26.2 27.4 28.0 28.1 28.2 28.0 27.1 Standard error of the mean 0.28 0.24 0.24 0.24 0.23 0.25 0.25 0.11 % Underweight 8 % Normal 59 % Overweight 21 % Obese, excluding morbidly obese 10 % Morbidly obese 2 % Overweight, including obese 33 % Obese 12 Self-reported Mean BMI (kg/m2) 23.1 2 53 26 17 4 46 20 1 39 36 21 4 61 25 1 33 35 27 5 66 31 2 30 36 30 3 69 32 2 28 38 29 3 70 32 1 29 39 29 3 70 32 2 39 33 23 3 58 26 25.1 26.2 27.0 27.0 27.2 26.0 25.9 Standard error of the mean 0.24 0.21 0.21 0.22 0.21 0.34 0.21 0.10 10 67 17 6 1 24 7 2 60 29 13 3 45 16 2 49 38 18 3 58 21 1 44 39 21 3 63 25 2 37 41 23 1 66 25 2 39 41 23 2 65 25 2 45 38 18 1 57 18 3 49 34 18 2 54 20 Men % Underweight % Normal % Overweight % Obese, excluding morbidly obese % Morbidly obese % Overweight, including obese % Obese % Underweight % Normal % Overweight % Obese, excluding morbidly obese % Morbidly obese % Overweight, including obese % Obese a Underweight: less than 18.5 2 Bases (unweighted) Men – interviewer-measuredb Men – self-reported Women – interviewer-measuredb Women – self-reported Bases (weighted) Men – interviewer-measuredb Men – self-reported Women – interviewer-measuredb Women – self-reported 20 307 329 401 406 467 520 587 667 573 646 688 761 562 636 686 755 531 601 639 723 420 489 500 579 306 398 371 491 3166 3619 3872 4382 515 568 503 528 597 681 552 637 633 724 628 702 612 701 612 679 522 587 534 601 364 419 391 452 234 305 310 407 3478 3986 3530 4006 kg/m Normal weight : 18.5 to less than 25 kg/m2 Overweight: 25 to less than 30 kg/m2 Obese, excluding morbidly obese: 30 to less than 40 kg/m2 Morbidly obese: 40 kg/m2 or more Overweight, including obese: 25 kg/m2 or more Obese: 30 kg/m2 or more b Based on those with both valid height and weight measurements. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Women Table 10.4 Interviewer-measured and self-reported body mass index (BMI), overweight and obesity prevalence (observed and age-standardised), by strategic health authoritya and sex Aged 16 and over 2011 Strategic health authoritya BMI (kg/m2) and BMI status (%)b North East North Yorkshire East West West & the Midlands Midlands Humber East of England London South East Coast South Central South West Men Observed: interviewer-measured Mean BMI (kg/m2) 27.2 27.3 27.1 27.3 27.4 27.5 26.5 27.6 26.7 27.3 Standard error of the mean 0.37 0.29 0.27 0.39 0.31 0.40 0.23 0.43 0.30 0.27 % Underweight 2 % Normal 33 % Overweight 41 % Obese, excluding morbidly obese 23 % Morbidly obese 2 % Overweight, including obese 66 % Obese 25 Observed: self-reported % Overweight, including obese 60 % Obese 18 Standardised: interviewer-measured Mean BMI (kg/m2) 26.6 2 36 38 0 36 38 2 30 44 2 30 41 2 30 41 1 39 42 1 29 47 2 38 42 32 43 23 2 25 1 22 1 25 2 22 4 18 0 21 1 16 1 23 2 63 25 64 26 67 23 68 27 67 26 61 19 70 23 59 17 68 24 57 20 53 20 62 18 61 19 56 18 53 14 63 18 55 14 61 17 26.4 26.1 26.5 26.8 26.4 25.8 26.8 25.8 26.4 Standard error of the mean 0.34 0.29 0.28 0.43 0.27 0.44 0.21 0.44 0.31 0.31 2 32 41 1 36 38 0 37 38 2 31 44 2 31 40 2 31 41 1 39 41 1 27 48 2 37 44 33 44 23 2 23 2 25 1 23 1 25 2 22 4 18 0 23 1 17 1 23 1 66 25 63 25 63 25 67 23 67 27 67 26 60 19 72 24 61 18 67 24 56 16 57 19 53 19 62 18 61 17 55 18 52 14 62 15 56 13 61 16 244 295 427 488 321 369 276 316 344 390 353 410 343 411 240 262 274 309 344 369 170 195 472 545 354 415 285 329 385 435 388 447 484 579 288 310 273 323 379 407 Copyright © 2012, The Health and Social Care Information Centre. All rights reserved % Underweight % Normal % Overweight % Obese, excluding morbidly obese % Morbidly obese % Overweight, including obese % Obese Standardised: self-reported % Overweight, including obese % Obese Bases (unweighted) Interviewer-measuredc Self-reported Bases (weighted) Interviewer-measuredc Self-reported a This table provides data for regional analysis by the configuration of strategic health authorities (SHAs) in place from July 2006. b Underweight: less than 18.5 kg/m2 Normal weight : 18.5 to less than 25 kg/m2 Overweight: 25 to less than 30 kg/m2 Obese, excluding morbidly obese: 30 to less than 40 kg/m2 Morbidly obese: 40 kg/m2 or more Overweight, including obese: 25 kg/m2 or more 2 or more Obese: 30 kg/m c Based on those with both valid height and weight measurements. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Continued… 21 Table 10.4 continued Aged 16 and over 2011 Strategic health authoritya BMI (kg/m2) and BMI status (%)b North East North Yorkshire East West West & the Midlands Midlands Humber East of England London South East Coast South Central South West Observed: interviewer-measured Mean BMI (kg/m2) 27.1 27.3 27.2 27.2 27.6 27.6 26.5 27.3 26.5 27.5 Standard error of the mean 0.42 0.28 0.34 0.37 0.38 0.35 0.29 0.57 0.25 0.27 % Underweight 3 % Normal 36 % Overweight 32 % Obese, excluding morbidly obese 26 % Morbidly obese 4 % Overweight, including obese 61 % Obese 29 Observed: self-reported % Overweight, including obese 51 % Obese 23 Standardised: interviewer-measured Mean BMI (kg/m2) 26.6 2 37 32 2 33 35 2 39 34 2 38 34 2 43 29 3 44 32 2 44 31 3 41 32 3 38 34 27 3 26 3 22 4 23 3 21 5 19 2 20 3 22 3 22 3 62 30 65 30 59 26 60 26 55 26 53 21 54 23 57 25 59 25 50 22 56 22 45 18 51 22 48 20 42 14 45 22 48 18 47 18 26.4 26.1 26.5 26.8 26.4 25.8 26.8 25.8 26.4 Standard error of the mean 0.41 0.28 0.33 0.33 0.37 0.31 0.28 0.53 0.29 0.31 3 36 32 2 37 33 2 33 35 1 43 33 1 40 35 2 45 29 3 45 32 2 44 32 3 42 31 3 39 35 25 3 25 3 26 3 20 4 21 3 20 4 18 1 19 3 22 3 21 2 61 28 61 28 65 29 56 24 59 24 53 24 52 20 54 22 56 25 58 23 51 23 50 21 55 20 46 18 47 20 46 18 43 14 44 20 49 19 47 17 306 373 490 572 412 463 355 384 392 441 425 492 423 504 319 355 330 358 420 440 171 204 451 531 377 425 319 342 359 402 400 459 482 571 318 354 267 305 387 411 % Underweight % Normal % Overweight % Obese, excluding morbidly obese % Morbidly obese % Overweight, including obese % Obese Standardised: self-reported % Overweight, including obese % Obese Bases (unweighted) Interviewer-measuredc Self-reported Bases (weighted) Interviewer-measuredc Self-reported a This table provides data for regional analysis by the configuration of strategic health authorities (SHAs) in place from July 2006. b Underweight: less than 18.5 kg/m2 Normal weight : 18.5 to less than 25 kg/m2 Overweight: 25 to less than 30 kg/m2 Obese, excluding morbidly obese: 30 to less than 40 kg/m2 Morbidly obese: 40 kg/m2 or more Overweight, including obese: 25 kg/m2 or more 2 or more Obese: 30 kg/m c Based on those with both valid height and weight measurements. 22 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Women Table 10.5 Interviewer-measured and self-reported body mass index (BMI), overweight and obesity prevalence (agestandardised), by equivalised household income and sex Aged 16 and over 2011 BMI (kg/m2) and BMI status (%)a Equivalised household income quintile Highest 2nd 3rd 4th Lowest Interviewer-measured Mean BMI (kg/m2) 27.3 27.3 27.7 27.6 26.7 Standard error of the mean 0.20 0.21 0.24 0.33 0.33 1 1 1 3 2 % Normal % Overweight % Obese, excluding morbidly obese % Morbidly obese % Overweight, including obese 31 48 19 1 68 31 46 21 1 68 31 42 23 3 69 29 40 26 2 68 40 33 23 2 58 % Obese Self-reported % Overweight, including obese % Obese 20 22 26 28 25 60 14 61 17 60 19 60 21 52 20 Interviewer-measured Mean BMI (kg/m2) 26.4 26.5 27.5 28.0 28.0 Standard error of the mean 0.26 0.21 0.26 0.26 0.28 1 48 30 20 2 51 22 2 45 33 17 3 53 20 2 34 37 24 3 64 27 3 33 32 28 4 64 32 3 33 33 27 5 64 31 41 16 43 16 51 19 55 23 55 26 616 680 595 685 554 617 656 706 530 591 633 678 507 575 669 741 384 434 585 650 662 734 536 630 602 673 610 653 548 621 560 594 534 602 590 652 430 492 522 586 Men % Underweight Women Copyright © 2012, The Health and Social Care Information Centre. All rights reserved % Underweight % Normal % Overweight % Obese, excluding morbidly obese % Morbidly obese % Overweight, including obese % Obese Self-reported % Overweight, including obese % Obese Bases (unweighted) Men – interviewer-measuredb Men – self-reported Women – interviewer-measuredb Women – self-reported Bases (weighted) Men – interviewer-measuredb Men – self-reported Women – interviewer-measuredb Women – self-reported a Underweight: less than 18.5 kg/m2 Normal weight : 18.5 to less than 25 kg/m2 Overweight: 25 to less than 30 kg/m2 Obese, excluding morbidly obese: 30 to less than 40 kg/m2 Morbidly obese: 40 kg/m2 or more Overweight, including obese: 25 kg/m2 or more Obese: 30 kg/m2 or more b Based on those with both valid height and weight measurements. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 23 Table 10.6 Interviewer-measured and self-reported body mass index (BMI), overweight and obesity prevalence (agestandardised), by Index of Multiple Deprivationa and sex Aged 16 and over 2011 BMI (kg/m2) and BMI status (%)b IMD quintile Least deprived 2nd 3rd 4th Most deprived Interviewer-measured Mean BMI (kg/m2) 27.4 27.2 27.3 27.1 26.9 Standard error of the mean 0.20 0.22 0.21 0.26 0.24 1 30 47 20 2 69 22 2 31 45 22 1 68 23 1 32 43 23 1 67 24 2 37 37 21 3 61 24 2 39 34 23 2 59 25 62 16 57 15 60 18 55 18 54 21 Interviewer-measured Mean BMI (kg/m2) 26.5 26.7 27.3 27.4 27.7 Standard error of the mean 0.18 0.25 0.22 0.25 0.28 1 42 37 18 2 57 19 2 44 29 22 3 54 25 2 38 31 24 4 59 28 3 34 34 24 4 62 28 2 38 30 26 4 60 30 44 15 45 19 49 20 52 21 52 24 655 750 847 916 682 775 814 931 664 765 817 950 595 681 709 804 570 648 685 781 673 791 741 809 750 845 768 871 717 828 741 882 673 771 648 733 664 751 632 712 Men % Underweight % Normal % Overweight % Obese, excluding morbidly obese % Morbidly obese % Overweight, including obese % Obese Self-reported % Overweight, including obese % Obese % Underweight % Normal % Overweight % Obese, excluding morbidly obese % Morbidly obese % Overweight, including obese % Obese Self-reported % Overweight, including obese % Obese Bases (unweighted) Men – interviewer-measuredc Men – self-reported Women – interviewer-measuredc Women – self-reported Bases (weighted) Men – interviewer-measuredc Men – self-reported Women – interviewer-measuredc Women – self-reported a The Index of Multiple Deprivation 2010 (IMD) combines a number of indicators, chosen to cover a range of economic, social and housing issues, into a single deprivation score at the small area level in England. b Underweight: less than 18.5 kg/m2 Normal weight : 18.5 to less than 25 kg/m2 Overweight: 25 to less than 30 kg/m2 Obese, excluding morbidly obese: 30 to less than 40 kg/m2 Morbidly obese: 40 kg/m2 or more Overweight, including obese: 25 kg/m2 or more Obese: 30 kg/m2 or more c Based on those with both valid height and weight measurements. 24 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Women Table 10.7 Comparison of self-reported and interviewer-measured BMI statusa (age-standardised), by sex Aged 16 and over with self-reported and interviewer-measured height and weight Self-reported BMI status 2011 Interviewer-measured BMI status Not Overweight overweight Obese % % % 94 6 23 74 1 32 Men Not overweight Overweight Obese 0 3 67 Overweight, including obese 6 77 99 98 2 0 2 31 66 2 69 1 25 73 99 953 1478 1315 1205 751 914 1158 1397 1374 1070 778 800 Women Not overweight Overweight Obese Overweight, including obese Bases (unweighted) Men Women Bases (weighted) Men Women a Not overweight: less than 25kg/m2 Overweight: 25 to less than 30kg/m2 Obese: 30kg/m2 or more Overweight, including obese: 25kg/m2 or more. Table 10.8 Waist circumference, by age and sex Aged 16 and over with a valid waist measurement Waist circumference (cm) and raised waist circumference (%)a 2011 Age group Total 16-24 25-34 35-44 45-54 55-64 65-74 75+ Mean waist circumference (cm) 85.2 92.0 97.3 100.5 102.9 104.0 103.6 97.1 Standard error of the mean 0.98 0.70 0.68 0.60 0.62 0.58 0.69 0.38 10 18 28 43 48 56 57 34 Mean waist circumference (cm) 80.4 83.5 88.1 90.9 91.9 93.0 94.2 88.5 Standard error of the mean 1.01 0.61 0.64 0.72 0.62 0.71 0.69 0.33 24 29 46 52 58 62 67 47 193 273 325 442 425 549 424 542 439 552 357 420 259 312 2422 3090 409 383 462 417 491 486 469 476 393 411 276 302 201 279 2701 2754 Men Copyright © 2012, The Health and Social Care Information Centre. All rights reserved % with raised waist circumference Women % with raised waist circumference Bases (unweighted) Men Women Bases (weighted) Men Women a Raised waist circumference: greater than 102cm in men and greater than 88cm in women. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 25 Table 10.9 Waist circumference (observed and age-standardised), by strategic health authoritya and sex Aged 16 and over with a valid waist measurement Waist circumference (cm) and raised waist circumference (%)b 2011 Strategic health authority North East North Yorkshire East West West & the Midlands Midlands Humber East of England London South East Coast South Central South West Men Observed Mean waist circumference (cm) 97.3 97.1 97.0 97.3 97.3 98.6 94.7 99.9 95.9 97.0 Standard error of the mean 1.31 1.47 0.97 1.15 1.11 1.30 0.74 0.91 1.45 1.14 % with raised waist circumference Standardised Mean waist circumference (cm) 32 34 34 35 35 39 29 41 26 37 97.4 97.6 97.0 96.8 97.7 97.9 96.2 98.2 96.2 96.2 Standard error of the mean 1.31 1.34 0.99 1.29 0.98 1.35 0.76 1.04 1.40 1.26 32 35 34 34 36 37 34 36 27 35 Observed Mean waist circumference (cm) 88.0 89.9 90.9 87.0 89.4 88.9 87.2 88.3 88.5 87.0 Standard error of the mean 0.86 0.75 0.85 0.88 1.09 0.89 0.90 1.82 0.72 0.98 % with raised waist circumference Women % with raised waist circumference Standardised Mean waist circumference (cm) 48 51 53 40 50 50 46 44 48 41 88.1 89.7 90.6 87.0 89.5 88.8 88.4 87.4 88.1 86.5 Standard error of the mean 0.85 0.75 0.93 0.87 1.09 0.87 0.93 1.69 0.81 1.00 48 50 52 40 50 49 50 40 47 40 216 275 299 365 266 345 234 317 260 301 269 336 233 321 174 245 194 257 277 328 139 139 366 354 284 289 221 252 301 271 296 305 383 403 212 249 216 216 283 275 % with raised waist circumference Bases (unweighted) Men Women Bases (weighted) Men Women 26 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved a This table provides data for regional analysis by the configuration of strategic health authorities (SHAs) in place from July 2006. b Raised waist circumference: greater than 102cm in men and greater than 88cm in women. Table 10.10 Waist circumference (age-standardised), by equivalised household income and sex Aged 16 and over with a valid waist measurement Waist circumference (cm) and raised waist circumference (%)a 2011 Equivalised household income quintile Highest 2nd 3rd 4th Lowest Mean waist circumference (cm) 96.9 96.8 98.5 98.0 96.6 Standard error of the mean 0.81 0.67 0.84 1.05 1.36 35 31 35 37 39 Mean waist circumference (cm) 86.0 86.2 89.5 90.3 90.9 Standard error of the mean 0.75 0.62 0.70 0.73 0.86 39 39 49 55 55 481 506 440 533 427 519 400 548 282 449 505 426 473 468 441 433 432 480 344 416 Men % with raised waist circumference Women % with raised waist circumference Bases (unweighted) Men Women Bases (weighted) Men Women a Raised waist circumference: greater than 102cm in men and greater than 88cm in women. Table 10.11 Waist circumference (age-standardised), by Index of Multiple Deprivationa and sex Aged 16 and over with a valid waist measurement 2011 IMD quintile Waist circumference (cm) and raised waist circumference (%)b Least deprived 2nd 3rd 4th Most deprived Mean waist circumference (cm) 97.8 97.9 96.9 97.0 95.7 Standard error of the mean 0.65 0.67 0.70 1.07 0.90 37 36 35 31 31 Mean waist circumference (cm) 87.0 87.7 89.8 88.9 89.5 Standard error of the mean 0.58 0.73 0.59 0.65 0.87 43 44 49 50 51 534 687 527 683 537 646 427 560 397 514 541 572 583 631 593 571 496 507 488 474 Men % with raised waist circumference Women Copyright © 2012, The Health and Social Care Information Centre. All rights reserved % with raised waist circumference Bases (unweighted) Men Women Bases (weighted) Men Women a The Index of Multiple Deprivation 2010 (IMD) combines a number of indicators, chosen to cover a range of economic, social and housing issues, into a single deprivation score at the small area level in England. b Raised waist circumference: greater than 102cm in men and greater than 88cm in women. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 27 Table 10.12 Health risk category associated with overweight and obesity based on body mass index (BMI) and waist circumference, by age and sex Aged 16 and over with valid height, weight and waist circumference measurementsa 2011 BMIb and waist circumference classificationc Total Health risk categoryd Age group 16-24 25-34 35-44 45-54 55-64 65-74 75+ % % % % % % % % 8 - 2 - 1 - 0 - - 0 - - 2 - 8 2 1 0 - 0 - 2 No increased risk No increased risk Increased risk 60 3 62 41 1 42 25 4 29 18 3 21 19 6 1 25 10 7 1 18 15 7 1 23 29 4 0 33 No increased risk Increased risk High risk 12 5 4 9 17 18 6 40 18 22 9 49 12 21 14 47 8 19 16 43 5 21 27 53 6 15 26 47 12 17 13 42 Increased risk High risk Very high risk 3 3 5 3 9 12 3 13 16 3 19 22 2 20 22 0 24 24 1 0 22 23 0 2 14 17 Very high risk Very high risk Very high risk Very high risk 3 3 0 3 3 4 4 8 8 7 7 4 4 5 5 0 5 5 1 1 8 75 5 6 6 1 1 2 59 18 9 13 2 2 1 47 22 12 19 2 2 0 33 21 17 28 3 3 32 20 19 30 1 1 0 22 21 27 29 1 1 28 17 26 28 2 2 2 45 18 15 21 181 295 400 390 403 321 215 2205 385 413 460 433 362 250 165 2469 Underweight Low waist circumference High waist circumference Very high waist circumference All underweight Normal Low waist circumference High waist circumference Very high waist circumference All normal Overweight Low waist circumference High waist circumference Very high waist circumference All overweight Obesity I Low waist circumference High waist circumference Very high waist circumference All obese I Obesity II Low waist circumference High waist circumference Very high waist circumference All obese II Obesity III Low waist circumference High waist circumference Very high waist circumference All obese III Men – Overall riskd Not applicable Not applicable Not applicable Very high risk Very high risk Very high risk Very high risk Not applicable No increased risk Increased risk High risk Very high risk Bases (unweighted) Men Bases (weighted) Men a Percentages and bases in this table are based on those who have a valid measurement for waist circumference, in addition to valid measurements of height and weight. Therefore subtotals for BMI categories by age and sex in this table are not definitive and may vary from estimates shown in Table 10.2. b BMI categories according to National Institute for Health and Clinical Excellence (NICE) guidelines: Underweight: Less than 18.5kg/m2, Normal: 18.5 to less than 25kg/m2’, Overweight: 25 to less than 30kg/m2, Obesity I: 30 to less than 35kg/m2, Obesity II: 35 to less than 2, Obesity III: 40kg/m2 or more. 40kg/m c Waist circumference categories according to NICE guidelines: Low High Very high Men less than 94cm 94–102cm more than 102cm Women less than 80cm 80–88cm more than 88cm d Health risk category according to NICE Guidelines. See note 2. 28 Continued… HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Men Table 10.12 continued Aged 16 and over with valid height, weight and waist circumference measurementsa 2011 BMIb and waist circumference classificationc Total Health risk categoryd Age group 16-24 25-34 35-44 45-54 55-64 65-74 75+ % % % % % % % % 6 6 2 2 1 1 1 1 2 2 3 3 1 1 2 2 No increased risk No increased risk Increased risk 49 7 2 58 39 10 2 51 25 9 2 36 21 10 2 33 15 11 4 30 10 11 4 26 12 11 8 31 26 10 3 39 No increased risk Increased risk High risk 4 10 8 22 7 12 9 28 4 16 17 37 5 12 18 35 2 11 24 37 3 11 26 39 1 11 24 36 4 12 17 33 Increased risk High risk Very high risk 1 7 8 1 9 10 0 1 14 15 1 18 19 0 1 20 21 0 21 22 0 24 25 0 1 16 16 Very high risk Very high risk Very high risk Very high risk 3 3 0 6 6 0 7 8 8 8 8 8 8 8 6 6 0 7 7 3 3 6 60 12 9 13 3 3 2 56 14 10 18 4 4 1 38 18 17 26 4 4 1 36 14 19 31 2 2 2 28 15 25 30 3 3 3 24 15 26 32 3 3 1 24 19 24 32 3 3 2 39 15 18 26 256 412 512 488 495 375 253 2791 356 386 451 429 368 268 228 2486 Women Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Underweight Low waist circumference High waist circumference Very high waist circumference All underweight Normal Low waist circumference High waist circumference Very high waist circumference All normal Overweight Low waist circumference High waist circumference Very high waist circumference All overweight Obesity I Low waist circumference High waist circumference Very high waist circumference All obese I Obesity II Low waist circumference High waist circumference Very high waist circumference All obese II Obesity III Low waist circumference High waist circumference Very high waist circumference All obese III Women – Overall riskd Not applicable Not applicable Not applicable Very high risk Very high risk Very high risk Very high risk Not applicable No increased risk Increased risk High risk Very high risk Bases (unweighted) Women Bases (weighted) Women a Percentages and bases in this table are based on those who have a valid measurement for waist circumference, in addition to valid measurements of height and weight. Therefore subtotals for BMI categories by age and sex in this table are not definitive and may vary from estimates shown in Table 10.2. b BMI categories according to National Institute for Health and Clinical Excellence (NICE) guidelines: Underweight: Less than 18.5kg/m2, Normal: 18.5 to less than 25kg/m2’, Overweight: 25 to less than 30kg/m2, Obesity I: 30 to less than 35kg/m2, Obesity II: 35 to less than 2, Obesity III: 40kg/m2 or more. 40kg/m c Waist circumference categories according to NICE guidelines: Low High Very high Men less than 94cm 94–102cm more than 102cm Women less than 80cm 80–88cm more than 88cm d Health risk category according to NICE Guidelines. See note 2. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 29 Table 10.13 Trends in overweight and obesity prevalence, 1993 to 2011, by age and sex Aged 16 and over with both valid height and weight measurements BMI status Men 1993 Overweight Obese 1994 Overweight Obese 1995 Overweight Obese 1996 Overweight Obese 1997 Overweight Obese 1998 Overweight Obese 1999 Overweight Obese 2000 Overweight Obese 2001 Overweight Obese 2002 Overweight Obese 2003b Overweight Obese 2004 Overweight Obese 2005 Overweight Obese 2006 Overweight Obese 2007 Overweight Obese 2008 Overweight Obese 1993-2011 Age group Total 16-24 25-34 35-44 45-54 55-64 65-74 75+ % % % % % % % % 21 5 39 10 48 14 52 17 51 20 54 15 46 11 44 13 25 40 46 51 51 53 48 44 6 10 16 17 18 18 15 14 24 6 40 12 47 16 49 19 51 22 50 18 49 14 44 15 22 6 43 13 48 16 49 21 51 24 52 20 47 16 45 16 22 5 43 13 48 18 52 22 47 27 56 18 50 12 45 17 23 5 40 16 48 17 52 21 52 23 55 21 48 16 46 17 21 6 39 16 46 21 49 23 52 21 49 22 52 18 44 19 18 9 41 20 48 21 49 25 53 26 50 24 52 17 45 21 27 10 44 16 48 23 51 26 51 27 52 24 52 18 47 21 21 9 42 18 47 24 48 28 47 28 52 26 52 19 43 22 23 9 41 18 47 25 48 28 50 27 49 29 50 21 43 22 23 8 41 18 50 25 48 30 48 30 48 28 54 19 44 23 24 8 44 17 46 27 47 28 47 29 47 28 49 17 43 22 25 9 41 21 48 25 48 28 47 33 49 31 51 18 43 24 24 9 39 16 47 25 40 35 48 31 49 28 50 22 41 24 25 8 41 18 46 26 44 31 44 34 50 33 49 23 42 24 a Overweight: 25 to less than 30kg/m2; Obese, including morbidly obese: 30kg/m2 or more. b From 2003 onwards, data have been weighted for non-response. Continued… 30 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved a Table 10.13 continued Aged 16 and over with both valid height and weight measurements BMI statusa 2009 Overweight Obese 2010 Overweight Obese 2011 Overweight Obese 1993-2011 Age group Total 16-24 25-34 35-44 45-54 55-64 65-74 75+ % % % % % % % % 29 6 38 13 50 21 45 34 49 32 52 30 49 23 44 22 22 13 37 19 49 28 44 35 44 37 53 28 50 26 42 26 23 9 39 17 48 21 44 32 44 31 49 30 47 29 41 24 20 8 25 11 29 17 37 19 39 24 41 22 42 16 32 16 20 8 25 13 28 17 36 18 39 26 41 25 36 16 31 17 19 8 25 13 31 17 36 22 42 23 45 24 41 17 33 18 19 8 28 15 30 18 39 19 41 28 43 25 40 20 34 18 19 9 27 15 32 18 36 23 37 30 44 25 41 22 33 20 17 11 27 16 30 21 36 24 39 29 41 29 35 21 32 21 19 10 27 16 34 19 35 26 40 29 40 30 40 20 33 21 22 9 27 16 31 19 36 24 41 29 41 30 41 23 34 21 22 12 26 19 31 22 36 28 38 31 41 30 41 20 33 23 21 11 27 21 34 23 38 25 36 29 38 28 43 22 34 23 18 13 28 18 33 22 33 26 39 28 41 30 40 26 33 23 24 12 31 17 30 24 36 27 37 32 40 29 46 21 34 23 19 12 27 19 30 25 35 28 37 28 42 34 40 26 32 24 Copyright © 2012, The Health and Social Care Information Centre. All rights reserved Women 1993 Overweight Obese 1994 Overweight Obese 1995 Overweight Obese 1996 Overweight Obese 1997 Overweight Obese 1998 Overweight Obese 1999 Overweight Obese 2000 Overweight Obese 2001 Overweight Obese 2002 Overweight Obese 2003b Overweight Obese 2004 Overweight Obese 2005 Overweight Obese a Overweight: 25 to less than 30kg/m2; Obese, including morbidly obese: 30kg/m2 or more. b From 2003 onwards, data have been weighted for non-response. Continued… HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 31 Table 10.13 continued Aged 16 and over with both valid height and weight measurements 1993-2011 Age group Total 16-24 25-34 35-44 45-54 55-64 65-74 75+ % % % % % % % % 20 12 29 18 30 24 35 27 36 30 38 35 42 27 32 24 22 10 25 19 35 24 32 30 37 31 37 32 40 27 32 24 20 14 27 19 31 25 35 29 38 31 38 33 40 26 32 25 23 17 27 16 29 24 36 27 39 29 44 31 35 26 33 24 21 11 28 21 30 26 34 30 39 32 37 37 37 27 32 26 21 12 26 20 36 25 35 31 36 32 38 32 39 32 33 26 Bases (unweighted) Men 1993 990 Men 1994 935 Men 1995 869 Men 1996 908 Men 1997 476 Men 1998 825 Men 1999 389 Men 2000 400 Men 2001 757 Men 2002 1553 Men 2003 686 Men 2004 255 Men 2005 367 Men 2006 577 Men 2007 321 Men 2008 695 Men 2009 210 Men 2010 334 Men 2011 307 Women 1993 1020 Women 1994 990 Women 1995 979 Women 1996 1016 Women 1997 510 Women 1998 903 Women 1999 459 Women 2000 362 Women 2001 856 Women 2002 1719 Women 2003 788 1444 1373 1309 1290 710 1261 566 591 1051 464 962 388 463 762 383 848 245 431 467 1544 1524 1521 1500 816 1433 647 674 1221 513 1088 1313 1288 1296 1348 714 1229 626 662 1220 629 1178 478 505 1084 518 1071 337 553 573 1459 1418 1394 1493 780 1449 744 778 1513 737 1452 1231 1076 1078 1247 667 1197 579 528 1112 485 1001 390 531 933 463 959 306 533 562 1306 1227 1258 1385 766 1373 689 632 1331 590 1142 1020 925 919 938 511 910 466 469 958 445 997 424 501 986 436 1053 301 552 531 1060 988 1028 1007 552 1043 465 509 1038 519 1194 841 816 820 831 414 745 383 376 766 329 736 319 355 735 370 737 281 446 420 991 1048 936 986 479 853 410 422 871 403 810 408 382 416 435 193 433 195 234 403 203 406 190 208 446 231 490 160 295 306 657 689 613 677 351 676 285 326 584 300 616 7247 6795 6707 6997 3685 6600 3204 3260 6267 2969 5966 2444 2930 5523 2722 5853 1840 3144 3166 8037 7884 7729 8064 4254 7730 3699 3703 7414 3509 7090 2006 Overweight Obese 2007 Overweight Obese 2008 Overweight Obese 2009 Overweight Obese 2010 Overweight Obese 2011 Overweight Obese a Overweight: 25 to less than 30kg/m2; Obese, including morbidly obese: 30kg/m2 or more. b From 2003 onwards, data have been weighted for non-response. Continued… 32 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved BMI statusa Table 10.13 continued Aged 16 and over with both valid height and weight measurements BMI statusa Women 2004 Women 2005 Women 2006 Women 2007 Women 2008 Women 2009 Women 2010 Women 2011 Bases (weighted) Men 2003 Men 2004 Men 2005 Men 2006 Men 2007 Men 2008 Men 2009 Men 2010 Men 2011 Women 2003 Women 2004 Women 2005 Women 2006 Women 2007 Women 2008 Women 2009 Women 2010 Women 2011 1993-2011 Age group Total 16-24 25-34 35-44 45-54 55-64 65-74 75+ % % % % % % % % 294 385 679 324 787 233 387 401 453 531 935 474 1026 299 559 587 649 668 1308 632 1309 426 693 688 527 614 1125 559 1176 342 750 686 538 588 1106 522 1196 343 613 639 393 364 776 415 828 286 460 500 281 259 575 281 661 192 381 371 3135 3409 6504 3207 6983 2121 3843 3872 960 418 491 930 461 1029 334 564 515 912 378 432 866 405 935 297 500 503 1194 481 552 991 499 1068 346 611 597 1085 460 524 942 466 1020 315 544 552 1316 573 620 1246 603 1243 389 651 633 1289 564 628 1207 599 1241 393 643 628 1073 465 521 993 514 1059 343 619 612 1073 459 517 996 497 1057 346 631 612 943 399 462 888 446 968 291 516 522 982 425 489 914 452 985 313 529 534 664 276 311 599 296 610 207 368 364 694 295 322 637 312 663 216 378 391 369 160 187 368 189 409 147 235 234 536 231 272 511 252 549 166 297 310 6519 2772 3144 6014 3008 6385 2055 3563 3478 6570 2812 3184 6074 2983 6450 2045 3523 3530 Copyright © 2012, The Health and Social Care Information Centre. All rights reserved a Overweight: 25 to less than 30kg/m2; Obese, including morbidly obese: 30kg/m2 or more. b From 2003 onwards, data have been weighted for non-response. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 33 Table 10.14 Hypertension categories (age-standardised), by interviewermeasured body mass index (BMI) status and sex Aged 16 and over with three valid BP measurements and valid height and weight measurementsa Hypertension categoriesb 2011 c Totala BMI status Underweight Normal Overweight Obese % % % % % Normotensive untreated Hypertensive controlled Hypertensive uncontrolled Hypertensive untreated d d d d 84 4 3 9 68 11 5 16 47 20 12 21 69 11 6 14 All with hypertension d 16 32 53 31 [91] [3] [1] [5] [9] 86 4 3 7 14 72 9 6 13 28 56 18 10 17 44 72 10 6 11 28 20 47 508 887 856 811 489 656 2070 2683 32 45 603 821 866 721 493 584 2194 2411 Men Women Normotensive untreated Hypertensive controlled Hypertensive uncontrolled Hypertensive untreated All with hypertension Bases (unweighted) Men Women Bases (weighted) Men Women a The total column includes those without a valid height or weight measurement, and corresponds with the totals shown in Table 3.6 in Chapter 3. b Normotensive untreated: Systolic blood pressure (SBP) less than 140mmHg and diastolic blood pressure (DBP) less than 90mmHg and not taking medication prescribed for high blood pressure Hypertensive controlled: SBP less than 140mmHg and DBP less than 90mmHg and taking medication prescribed for high blood pressure Hypertensive uncontrolled: SBP at least 140mmHg or DBP at least 90mmHg and taking medication prescribed for high blood pressure Hypertensive untreated: SBP at least 140mmHg or DBP at least 90mmHg and not taking medication prescribed for high blood pressure All with hypertension: SBP at least 140mmHg or DBP at least 90mmHg or taking medication prescribed for high blood pressure. c Underweight: less than 18.5kg/m2 Normal weight: 18.5 to less than 25kg/m2 Overweight: 25 to less than 30kg/m2 Obese, including morbidly obese: 30kg/m2 or more. d Data not shown because the base is too small. 34 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved [ ] Results in brackets should be treated with caution because of the small base size. Table 10.15 Hypertension categories (age-standardised), by waist circumference and sex Aged 16 and over with three valid BP measurements and a valid waist measurementa Hypertension categoriesb Waist circumference 2011 c Totala Non raised Raised waist waist circumference circumference % % % Normotensive untreated Hypertensive controlled 80 5 48 20 69 11 Hypertensive uncontrolled Hypertensive untreated 3 11 12 20 6 14 All with hypertension 20 52 31 85 4 3 8 15 58 16 9 16 42 72 10 6 11 28 1220 1355 808 1263 2070 2683 1367 1245 786 1108 2194 2411 Men Women Normotensive untreated Hypertensive controlled Hypertensive uncontrolled Hypertensive untreated All with hypertension Bases (unweighted) Men Women Bases (weighted) Men Women a The total column includes those without a valid waist measurement, and corresponds with the totals shown in Table 3.6 in Chapter 3. b Normotensive untreated: Systolic blood pressure (SBP) less than 140mmHg and diastolic blood pressure (DBP) less than 90mmHg and not taking medication prescribed for high blood pressure Hypertensive controlled: SBP less than 140mmHg and DBP less than 90mmHg and taking medication prescribed for high blood pressure Hypertensive uncontrolled: SBP at least 140mmHg or DBP at least 90mmHg and taking medication prescribed for high blood pressure Hypertensive untreated:§SBP at least 140mmHg or DBP at least 90mmHg and not taking medication prescribed for high blood pressure All with hypertension: SBP at least 140mmHg or DBP at least 90mmHg or taking medication prescribed for high blood pressure. Copyright © 2012, The Health and Social Care Information Centre. All rights reserved c Raised waist circumference: greater than 102cm in men and greater than 88cm in women. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 35 Table 10.16 Longstanding illness (age-standardised), by interviewer-measured body mass index (BMI) status and sex Aged 16 and over with valid height and weight measurementsa Longstanding illness 2011 BMI statusb Underweight Totala Normal Overweight Obese % % % % % [11] [19] [70] 14 14 73 18 20 62 30 23 47 21 18 62 19 13 68 16 15 69 23 19 58 34 21 45 24 17 59 33 78 965 1474 1374 1285 793 1034 3820 4785 50 78 1167 1391 1440 1146 820 914 4219 4384 Men Limiting longstanding illness Non-limiting longstanding illness No longstanding illness Women Limiting longstanding illness Non-limiting longstanding illness No longstanding illness Bases (unweighted) Men Women Bases (weighted) Men Women a The total column includes those without a valid height or weight measurement. b Underweight: less than 18.5kg/m2 Normal weight: 18.5 to less than 25kg/m2 Overweight: 25 to less than 30kg/m2 Obese, including morbidly obese: 30kg/m2 or more. 36 HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY Copyright © 2012, The Health and Social Care Information Centre. All rights reserved [ ] Results in brackets should be treated with caution because of the small base size. Table 10.17 Longstanding illness (age-standardised), by waist circumference and sex Aged 16 and over with valid waist measurementa Longstanding illness 2011 Waist circumferenceb Totala Non raised Raised waist waist circumference circumference % % % 17 18 65 24 22 54 21 18 62 19 17 64 29 20 51 24 17 59 1485 1591 937 1498 3820 4785 1780 1452 921 1301 4219 4384 Men Limiting longstanding illness Non-limiting longstanding illness No longstanding illness Women Limiting longstanding illness Non-limiting longstanding illness No longstanding illness Bases (unweighted) Men Women Bases (weighted) Men Women a The total column includes those without a valid waist measurement. b Raised waist circumference: greater than 102cm in men and greater than 88cm Copyright © 2012, The Health and Social Care Information Centre. All rights reserved in women. HSE 2011: VOL1 | CHAPTER 10: ADULT ANTHROPOMETRIC MEASURES, OVERWEIGHT AND OBESITY 37
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