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Table 3 Injury characteristics

From: The health and cost implications of high body mass index in Australian defence force personnel

 

Cohort

 

Normal

Overweight

Obese Restricted body fat

Obese No restriction on body fat

 

n = 197

n = 154

n = 148

n = 180

 

n (rate/100)

n (rate/100)

n (rate/100)

n (rate/100)

New injuries

22 (11)

19 (12)

44 (30)

41 (23)

 Rate ratio

1 (Reference)

1.1 (0.6, 2.1)

2.7 (1.6, 4.7)

2.0 (1.2, 3.6)

p-value

0.75

<0.01

<0.01

Cause of injury

    

Injuries incurred during physical training

14 (7)

9 (6)

32 (22)

16 (9)

 Rate ratio

1 (Reference)

0.8 (0.3, 2.0)

3.0 (1.6, 6.2)

1.3 (0.5, 2.8)

p-value

0.66

<0.01

0.55

Overuse/exertion

9 (5)

10 (6)

28 (19)

15 (8)

 Rate ratio

1 (Reference)

1.4 (0.5, 4.0)

4.1 (1.9, 10.0)

1.8 (0.8, 4.7)

p-value

0.45

<0.01

0.16

Stumble/fall/trip

9 (5)

7 (5)

10 (7)

17 (9)

 Rate ratio

1 (Reference)

1.0 (0.3, 3.0)

1.5 (0.5, 4.1)

2.1 (0.9, 5.3)

p-value

1.0

0.40

0.08

Severity of injury

    

Mild

10 (5)

7 (5)

20 (14)

27 (15)

 Rate ratio

1 (Reference)

0.9 (0.3, 2.6)

2.7 (1.2, 6.4)

3.0 (1.4, 6.8)

p-value

0.84

0.01

0.02

Incapacity <5 days

3 (2)

8 (5)

15 (10)

7 (4)

 Rate ratio

1 (Reference)

3.4 (0.8, 20.0)

6.7 (1.9, 35.9)

2.6 (0.6, 15.3)

p-value

0.06

<0.01

0.18

Consequence of injury

    

Absence from physical training/sport

21 (11)

8 (5)

29 (20)

24 (13)

 Rate ratio

1 (Reference)

0.5 (0.2, 1.1)

1.8 (1.0, 3.4)

1.3 (0.7, 2.4)

p-value

0.08

0.03

0.46

Absence from work

5 (3)

7 (5)

11 (7)

16 (9)

 Rate ratio

1 (Reference)

1.8 (0.5, 7.2)

2.9 (0.9, 10.8)

3.5 (1.2, 12.2)

p-value

0.33

0.04

0.01

  1. N.B. Other categories of injuries included recurring injuries, chronic injuries, injuries resulting from strikes/collisions, moderate injuries, severe injuries, incapacity >5 days and no treatment required. For the purpose of brevity, these data are not shown because the prevalence of these types of injuries was comparatively low, and there were no significant differences between the four cohorts.