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Table 1 Comparison of baseline demographics of patients between traumatic musculoskeletal injury and non-traumatic disorder

From: Epidemiological patterns of traumatic musculoskeletal injuries and non-traumatic disorders in Japan Self-Defense Forces

Ā 

Traumatic injuries

Non-traumatic disorders

Total No.

10,442

16,395

Average age (y)

33.7

15ā€“60 y

36.4

15-60y

Age distribution

15ā€“19 y

573

5.5%

1093

6.7%

20ā€“29 y

3646

34.9%

4154

25.3%

30ā€“39 y

2864

27.4%

3789

23.1%

40ā€“49 y

2452

23.5%

4952

30.2%

50ā€“60 y

907

8.7%

2394

14.6%

non-responder

Ā Ā 

13

0.0%

Sex

male

9701

93.2%

15,138

92.6%

female

660

6.3%

1140

7.0%

non-responder

81

0.8%

117

0.7%

Alcohol habit

drink everyday

2132

21.0%

3363

20.5%

drink sometimes

6290

60.2%

9850

60.1%

non-drinker

1472

14.5%

2314

14.1%

non-responder

548

5.2%

868

5.3%

Smoking habit

smoker

3974

38.1%

6289

38.4%

non-smoker

6138

58.8%

9564

58.3%

non-responder

330

3.2%

542

3.3%

Uniformed service

Ground Force

6752

64.7%

11,066

67.5%

Maritime Force

2593

24.8%

3988

24.3%

Air Force

528

5.1%

967

5.9%

non-responder

569

5.4%

374

2.3%

Rank

Officer

1603

15.4%

3418

20.8%

Enlisted

5829

55.8%

8941

54.5%

Soldier

2194

21.0%

3313

20.2%

Cadet

572

5.5%

374

2.3%

non-responder

244

2.3%

349

2.1%