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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.