Table 2. Number, incidence rate 1, median days away from work 2 and relative standard errors 3 of occupational injuries and illnesses involving
days away from work 4 to selected parts of body with musculoskeletal disorders5 in selected ownerships for Michigan, 2009
Ownership
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
private industry
Part of body affected
Total Cases
All Selected Parts
1 Neck- Including Throat
10 Neck- except internal location of diseases or disorders
2 Trunk
20 Trunk- unspecified
21 Shoulder- including clavicle- scapula
22 Chest- including ribs- internal organs
220 Chest- except internal location of diseases or disorders
23 Back- including spine- spinal cord
230 Back- including spine- spinal cord- unspecified
231 Lumbar region
232 Thoracic region
238 Multiple back regions
24 Abdomen
240 Abdomen- except internal location of diseases or disorders
241 Internal abdominal location- unspecified
245 Intestines- peritoneum
2450 Intestines- peritoneum- unspecified
25 Pelvic region
251 Hip(s)
254 Groin
28 Multiple trunk locations
3 Upper extremities
31 Arm(s)
310 Arm(s)- unspecified
311 Upper arm(s)
312 Elbow(s)
313 Forearm(s)
32 Wrist(s)
33 Hand(s)- except finger(s)
34 Finger(s)- fingernail(s)
38 Multiple upper extremities locations
389 Multiple upper extremities locations- n.e.c.
4 Lower extremities
41 Leg(s)
411 Thigh(s)
412 Knee(s)
413 Lower leg(s)
418 Multiple leg(s) locations
42 Ankle(s)
7,290
90
90
5,090
20
1,050
60
60
3,320
1,350
1,740
130
100
490
70
240
180
180
120
20
80
30
1,110
300
110
40
110
30
620
80
60
50
20
590
500
20
430
20
20
70
page 1 of 3
Incidence Rate
28.2
0.4
0.4
19.7
0.1
4.1
0.2
0.2
12.8
5.2
6.7
0.5
0.4
1.9
0.3
0.9
0.7
0.7
0.5
0.1
0.3
0.1
4.3
1.2
0.4
0.1
0.4
0.1
2.4
0.3
0.2
0.2
0.1
2.3
1.9
0.1
1.7
0.1
0.1
0.3
Median Days
14
14
14
11
30
27
8
8
7
8
7
6
5
25
18
25
30
30
9
23
12
5
19
26
22
13
112
6
19
43
19
15
15
15
15
4
17
70
8
3
Relative
Standard Error
5.0
20.6
20.6
5.3
47.2
7.4
25.6
25.6
5.6
6.9
6.4
17.6
19.8
9.8
23.9
13.2
14.9
14.9
18.2
42.0
22.0
33.2
7.3
12.0
18.9
32.4
19.0
32.9
8.9
21.8
25.2
28.6
45.4
9.1
9.7
44.0
10.3
39.8
47.3
24.0
Table 2. Number, incidence rate 1, median days away from work 2 and relative standard errors 3 of occupational injuries and illnesses involving
days away from work 4 to selected parts of body with musculoskeletal disorders5 in selected ownerships for Michigan, 2009
Ownership
private industry
private industry
private industry
local government
local government
local government
local government
local government
local government
local government
local government
local government
local government
local government
local government
local government
local government
local government
local government
local government
Part of body affected
Total Cases
43 Foot(feet)- except toe(s)
8 Multiple Body Parts
9999 Nonclassifiable
All Selected Parts
2 Trunk
21 Shoulder- including clavicle- scapula
22 Chest- including ribs- internal organs
220 Chest- except internal location of diseases or disorders
23 Back- including spine- spinal cord
230 Back- including spine- spinal cord- unspecified
231 Lumbar region
24 Abdomen
240 Abdomen- except internal location of diseases or disorders
3 Upper extremities
32 Wrist(s)
33 Hand(s)- except finger(s)
4 Lower extremities
41 Leg(s)
412 Knee(s)
8 Multiple Body Parts
20
390
20
960
840
240
90
90
470
160
300
30
20
50
20
20
20
20
20
30
page 2 of 3
Incidence Rate
0.1
1.5
0.1
34.0
29.8
8.5
3.3
3.3
16.7
5.7
10.7
1.1
0.6
1.8
0.7
0.9
0.9
0.9
0.9
1.0
Median Days
10
19
14
10
10
6
96
96
10
20
10
6
6
4
4
3
10
10
10
5
Relative
Standard Error
45.1
10.7
45.0
13.1
13.5
19.3
28.1
28.1
15.6
22.5
17.9
46.0
62.8
36.6
57.7
52.6
52.2
52.2
52.2
48.0
Table 2. Number, incidence rate 1, median days away from work 2 and relative standard errors 3 of occupational injuries and illnesses involving
days away from work 4 to selected parts of body with musculoskeletal disorders5 in selected ownerships for Michigan, 2009
Ownership
state government
state government
state government
state government
state government
state government
state government
state government
state government
state government
state government
Part of body affected
Total Cases
All Selected Parts
2 Trunk
21 Shoulder- including clavicle- scapula
23 Back- including spine- spinal cord
230 Back- including spine- spinal cord- unspecified
231 Lumbar region
24 Abdomen
241 Internal abdominal location- unspecified
3 Upper extremities
32 Wrist(s)
8 Multiple Body Parts
240
150
40
70
40
20
30
20
40
30
40
Incidence Rate
Median Days
17.5
10.8
2.7
4.9
3.1
1.6
2.2
1.3
2.8
2.5
3.0
1
Incidence rates represent the number of injuries and illnesses per 10,000 full-time workers and were calculated as:
(N / EH) X 20,000,000 where,
N
= number of injuries and illnesses,
EH
= total hours worked by all employees during the calendar year,
20,000,000
= base for 10,000 full-time equivalent workers (working 40 hours per week, 50 weeks per year).
2
Median days away from work is the measure used to summarize the varying lengths of absences from work among the cases with days
away from work. Half the cases involved more days and half involved less days than a specified median. Median days away from work
are represented in actual values.
3
Relative standard errors are a measure of the sampling error of an estimate. Sampling errors occur because
observations are made on a sample, not on the entire population. Estimates based on the different possible samples
of the same size and sample design could differ. Relative standard errors less than 0.05 are not shown.
4
Days away from work cases include those which result in days away from work with or without job transfer or restriction.
5
Includes cases where the nature of injury is: sprains, strains, tears; back pain, hurt back; soreness, pain, hurt,
except back; carpal tunnel syndrome; hernia; or musculoskeletal system and connective tissue diseases and
disorders and when the event or exposure leading to the injury or illness is: bodily reaction/bending, climbing,
crawling, reaching, twisting; overexertion; or repetition. Cases of Raynaud's phenomenon, tarsal tunnel
syndrome, and herniated spinal discs are not included. Although these cases may be considered MSD's, the survey
classifies these cases in categories that also include non-MSD cases.
NOTE: Dashes indicate data that do not meet publication guidelines or data for incidence rates less than .05 per 10,000
full-time workers. The scientifically selected probability sample used was one of many possible samples, each of which
could have produced different estimates. A measure of sampling variability for each estimate is available upon request.
SOURCE: Bureau of Labor Statistics, U.S. Department of Labor, February 25, 2011
page 3 of 3
17
17
69
6
10
4
41
32
60
60
2
Relative
Standard Error
13.5
16.2
30.2
22.9
28.3
39.4
33.1
42.5
29.6
31.3
28.7