Table 2

Demographic comparisons between different cohorts.

DemographicsNMedian age (years) (IQR)MaleOther ranksSNCOs and officers
Cohort 1
(Pre deployment)
15728 (23–37)143/157 (91.1%)141/157 (89.8%)16/157 (10.2%)
Cohort 2
(During deployment)
6324.5 (22–28.8)49/63 (77.8%)49/63 (77.8%)14/63 (22.2%)
Cohort 3
(Post deployment)
1935 (30–38)19/19 (100%)10/19 (52.6%)9/19 (47.4%)
  • Ranks are defined using the North Atlantic Treaty Organisation rank range. Other ranks=OR1–OR4; senior non-commissioned officers (SNCOs)=OR5–OR9; officers=OF1–OF10