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Table 1 Cohort 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  p  -value
  n = 197 n = 154 n = 148 n = 180  
  n (%) n (%) n (%) n (%)  
Sex      
 Male 160 (81) 136 (88) 140 (95) 161 (89) 0.003
 Female 37 (19) 18 (12) 8 (5) 19 (11)  
Service      
 Navy 63 (32) 51 (33) 40 (27) 74 (41) 0.002
 Army 90 (46) 70 (45) 78 (53) 86 (48)  
 Air Force 44 (22) 33 (21) 30 (20) 20 (11)  
Age group      
 ≤19 126 (65) 54 (35) 54 (36) 59 (33) <0.0001
 20–24 56 (29) 51 (33) 49 (33) 59 (33)  
 25–29 2 (1) 28 (18) 20 (14) 31 (17)  
 ≥30 10 (5) 21 (14) 25 (17) 31 (17)  
Rank      
 Officer 20 (13) 8 (7) 7 (5) 11 (7) 0.06
 Recruit 139 (87) 115 (94) 131 (95) 150 (93)  
MEC status      
 1 139 (95) 118 (91) 107 (85) 142 (88) 0.02
 2 2 (1) 10 (8) 4 (3) 9 (6)  
  201 0 (0) 2 (2) 1 (1) 4 (2)  
  202 2 (1) 7 (5) 2 (2) 5 (3)  
  203 0 (0) 1 (1) 1 (1) 0  
 3 5 (3) 1 (1) 14 (11) 10 (6)  
 4 0 (0) 0 1 (1) 0  
  1. N.B. MEC = Medical Employment Classification.
  2. MEC 1 = medically fit, without restriction, for deployment for a particular military occupation.
  3. MEC 2 = medically fit for deployment but with limitations on the range of duties or geographic location, and/or a requirement for access to various levels of health logistic or personnel support.
  4. MEC 3 = medically unfit for deployment in the medium term (up to 12 months).
  5. MEC 4 = medically unfit for deployment for more than 12 months and requires review by a Medical Employment Classification Review Board.
  6. MEC data were unavailable for a small number of participants in each cohort.