Table 1. 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 by selected natures with musculoskeletal disorders5 in selected ownerships for Michigan, 2012
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
local government
local government
local government
local government
local government
local government
local government
local government
local government
local government
local government
state government
state government
state government
state government
Nature of the injury or illness6
Total Cases
Incidence Rate
All Selected Natures
10,440
1131 Pinched nerve
40
1211 Herniated discs
60
1221 Meniscus tears
80
123 Sprains- strains- tears
7,720
1230 Sprains- strains- tears- unspecified
470
1231 Major tears to muscles- tendons- ligaments
310
1232 Sprains
1,260
1233 Strains
5,470
1238 Multiple sprains- strains- tears
200
124 Hernias due to traumatic incidents
590
1972 Soreness- pain- hurt--nonspecified injury
1,140
1973 Swelling- inflammation- irritation--nonspecified injury
50
2241 Carpal tunnel syndrome
270
253 Hernia--nontraumatic
20
27 Musculoskeletal system and connective tissue diseases and disorders
450
272 Dorsopathies
30
273 Soft tissue disorders- except the back
410
2730 Soft tissue disorder- except the back- unspecified
40
2732 Stenosing tenosynovitis
100
2733 Other tenosynovitis- synovitis
30
2734 Epicondylitis
90
2735 Other or unspecified tendonitis (tendinitis)
90
2738 Multiple soft tissue disorders
20
2739 Soft tissue disorder- except the back- n.e.c.
20
All Selected Natures
1,090
123 Sprains- strains- tears
820
1230 Sprains- strains- tears- unspecified
60
1231 Major tears to muscles- tendons- ligaments
40
1232 Sprains
150
1233 Strains
500
1238 Multiple sprains- strains- tears
60
1972 Soreness- pain- hurt--nonspecified injury
180
253 Hernia--nontraumatic
30
27 Musculoskeletal system and connective tissue diseases and disorders
30
273 Soft tissue disorders- except the back
30
All Selected Natures
160
123 Sprains- strains- tears
150
1230 Sprains- strains- tears- unspecified
20
1233 Strains
130
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39.6
0.1
0.2
0.3
29.3
1.8
1.2
4.8
20.7
0.8
2.3
4.3
0.2
1.0
0.1
1.7
0.1
1.6
0.2
0.4
0.1
0.3
0.3
0.1
0.1
44.9
33.7
2.5
1.8
6.3
20.7
2.4
7.2
1.3
1.1
1.1
13.3
12.2
1.3
10.1
Median Days
13
155
48
72
12
12
77
6
12
18
31
14
109
39
45
29
5
29
53
85
6
4
29
3
109
11
7
7
91
7
4
118
30
47
8
8
28
32
26
32
Relative Standard
Error
4.1
28.5
23.3
19.6
4.2
8.9
10.6
6.2
4.4
12.9
8.1
6.4
24.2
11.3
38.9
9.1
33.0
9.4
26.9
18.0
33.0
19.3
18.7
44.3
35.9
13.7
14.2
32.0
36.8
22.2
15.6
32.8
21.1
42.4
45.9
46.7
40.0
40.3
61.3
40.9
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 (DAFW) include those which result in days away from work with or without restricted work activity.
5
Includes cases where the nature of injury is: pinched nerve; herniated disc; meniscus tear; sprains, strains, tears; hernia
(traumatic and nontraumatic); pain, swelling, and numbness; carpal or tarsal tunnel syndrome; Raynaud's syndrome or
phenomenon; musculoskeletal system and connective tissue diseases and disorders, when the event or exposure leading to the
injury or illness is: overexertion and bodily reaction, unspecified; overexertion involving outside sources; repetitive motion involving
microtasks; other and multiple exertions or bodily reactions; and rubbed, abraded, or jarred by vibration. Although these cases
may be considered MSD's, the survey classifies these cases in categories that also include non-MSD cases.
6
Occupational Injury and Illness Classification System (OIICS) version 2.01.
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: U.S. Bureau of Labor Statistics, U.S. Department of Labor, December 02, 2013
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