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 Maryland, 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
local government
local government
local government
Part of body affected
Total Cases
All Selected Parts
1 Neck- Including Throat
10 Neck- except internal location of diseases or disorders
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
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
254 Groin
28 Multiple trunk locations
3 Upper extremities
31 Arm(s)
310 Arm(s)- unspecified
311 Upper arm(s)
312 Elbow(s)
32 Wrist(s)
33 Hand(s)- except finger(s)
38 Multiple upper extremities locations
389 Multiple upper extremities locations- n.e.c.
4 Lower extremities
41 Leg(s)
410 Leg(s)- unspecified
412 Knee(s)
42 Ankle(s)
43 Foot(feet)- except toe(s)
430 Foot(feet)- except toe(s)- unspecified
8 Multiple Body Parts
All Selected Parts
2 Trunk
21 Shoulder- including clavicle- scapula
5,370
120
120
3,940
590
60
60
2,830
1,290
1,330
160
60
200
40
60
100
100
190
170
60
500
230
180
20
20
160
50
50
40
580
380
70
290
120
70
70
220
730
510
100
page 1 of 3
Incidence Rate
31.3
0.7
0.7
22.9
3.4
0.3
0.3
16.5
7.5
7.7
0.9
0.3
1.2
0.3
0.4
0.6
0.6
1.1
1.0
0.4
2.9
1.4
1.0
0.1
0.1
0.9
0.3
0.3
0.2
3.4
2.2
0.4
1.7
0.7
0.4
0.4
1.3
40.6
28.8
5.9
Median Days
7
3
3
7
16
4
4
5
3
7
3
12
28
20
28
27
27
13
15
5
7
3
2
6
18
20
30
11
30
7
10
6
24
4
7
7
18
18
19
18
Relative
Standard Error
4.1
16.3
16.5
4.4
8.0
23.7
23.7
4.7
5.9
5.9
14.5
23.4
12.8
27.0
22.5
18.3
18.3
13.3
13.9
23.0
8.6
12.0
13.6
40.3
36.8
14.4
26.0
25.4
28.5
8.0
9.6
20.6
10.9
16.2
22.0
22.0
12.4
10.5
12.3
26.3
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 Maryland, 2009
Ownership
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
23 Back- including spine- spinal cord
230 Back- including spine- spinal cord- unspecified
231 Lumbar region
25 Pelvic region
254 Groin
3 Upper extremities
4 Lower extremities
41 Leg(s)
412 Knee(s)
42 Ankle(s)
8 Multiple Body Parts
350
160
180
40
30
50
110
60
40
40
50
page 2 of 3
Incidence Rate
19.8
9.0
10.3
2.3
1.5
2.7
6.0
3.5
2.3
2.5
3.0
Median Days
21
103
12
14
14
14
27
13
48
70
22
Relative
Standard Error
14.6
21.4
20.0
41.8
52.3
38.4
26.0
34.0
41.6
40.0
36.7
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 Maryland, 2009
Ownership
state government
state government
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
23 Back- including spine- spinal cord
230 Back- including spine- spinal cord- unspecified
231 Lumbar region
3 Upper extremities
32 Wrist(s)
38 Multiple upper extremities locations
4 Lower extremities
41 Leg(s)
412 Knee(s)
42 Ankle(s)
8 Multiple Body Parts
320
150
120
90
40
90
50
40
60
30
30
30
20
Incidence Rate
Median Days
36.3
17.2
13.9
9.5
4.0
10.5
5.4
4.5
6.6
2.8
2.8
3.5
2.0
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
13
5
2
3
2
25
25
115
13
13
13
14
4
Relative
Standard Error
6.8
10.3
11.6
14.1
21.9
13.4
18.9
20.7
17.0
26.3
26.3
23.4
30.9