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Table 1 Demographics of the study cohort1 and those with a recent mental health disorder diagnosis2

From: Low validity of self-report in identifying recent mental health diagnosis among U.S. service members completing Pre-Deployment Health Assessment (PreDHA) and deployed to Afghanistan, 2007: a retrospective cohort study

  Study cohort Subjects with a recent mental health disorder diagnosis
  Number (Percentage) Number (Percentage)
Total 15195 (100) 615 (100)
Gender     
   Male 13816 (90.9) 506 (82.3)
   Female 1379 (9.1) 109 (17.7)
Prior deployments     
   0 10180 (67.0) 362 (58.9)
   1+ 5015 (33.0) 253 (41.1)
Military occupation     
   Combat 3810 (25.1) 125 (20.3)
   Non-combat 11385 (74.9) 490 (79.7)
Age     
   18-19 503 (3.3) 22 (3.6)
   20-29 9558 (62.9) 396 (64.4)
   30-39 3737 (24.6) 151 (24.6)
   40-49 1255 (8.3) 45 (7.3)
   50+ 142 (0.9) 1 (0.2)
  1. Note: Significant difference by gender (P < 0.001), prior deployment (P < 0.001), and military occupation (P = 0.006) by Chi-square.
  2. 1. Demographic characteristics as of the deployment date.
  3. 2. Record of one or more pertinent ICD-9CM diagnosis codes in the full year prior to date of deployment.
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