Association between sociodemographic variables and psychological disorder
| Characteristic n (%) | CMD cases n (%) | χ2, df, p value | PTSD cases n (%) | χ2, df, p value | Problem drinking cases n (%) | χ2, df, p value |
|---|---|---|---|---|---|---|
| Service background | ||||||
| Royal Navy personnel 1224 (91.3) | 520/1219 (42.7) | 5.89, 1, p=<0.05 | 101/1221 (8.3) | 0.27, 1, NS | 218/1219 (17.9) | 0.76, 1, NS |
| Royal Marines 116 (8.7) | 36/116 (31.0) | 8/116 (6.9) | 17/116 (14.7) | |||
| Rank | ||||||
| Officer rank 195 (14.3) | 67/195 (34.4) | 20.89, 2, p=<0.001 | 6/195 (3.1) | 21.38, 2, p=<0.001 | 34/193 (17.6) | 5.27, 2, NS |
| Senior rating 295 (21.6) | 95/295 (32.2) | 11/295 (3.7) | 64/294 (21.8) | |||
| Junior rating 876 (64.1) | 398/871 (45.7) | 92/873 (10.5) | 139/874 (15.9) | |||
| Age, years | ||||||
| Under 25 402 (29) | 212/400 (53.0) | 32.01, 1, p=<0.001 | 54/401 (13.5) | 25.28, 1, p=<0.001 | 69/401 (17.2) | 0.02, 1, NS |
| Over 25 986 (71) | 359/984 (36.5) | 54/985 (5.5) | 172/982 (17.5) | |||
| Sex | ||||||
| Male 1185 (85.9) | 484/1181 (41.0) | 0.47, 1, NS | 92/1183 (7.8) | 0.002, 1, NS | 216/1181 (18.3) | 4.80, 1, p=<0.05 |
| Female 195 (14.1) | 85/195 (43.6) | 15/195 (7.7) | 23/194 (11.9) | |||
| Relationship status | ||||||
| In a relationship 912 (65.7) | 359/908 (39.5) | 3.34, 1, NS | 65/910 (7.1) | 1.94, 1, NS | 157/908 (17.3) | 0.03, 1, NS |
| Not in a relationship 476 (34.3) | 212/475 (44.6) | 44/475 (9.3) | 84/475 (17.7) | |||
| Length of service | ||||||
| 0–4 years of service 463 (35.9) | 245/461 (53.1) | 43.13, 1, p=<0.001 | 54/462 (11.7) | 17.82, 1, p=<0.001 | 67/462 (14.5) | 3.29, 1, NS |
| 5 years or more service 826 (64.1) | 283/824 (34.3) | 43/825 (5.2) | 152/823 (18.5) | |||
| Regular or reserve engagement | ||||||
| Full-time service personnel 1367 (99.1) | 558/1362 (41.0) | 1.48, 1, NS | 107/1364 (7.8) | FET, 1, NS | 237/1362 (17.4) | FET, 1, NS |
| Reservist 12 (0.9) | 7/12 (58.3) | 0/12 (0.0) | 3/12 (25.0) | |||
AOR, adjusted odds ratio; CMD, common mental disorder; df, degrees of freedom; FET, Fisher's exact test; NS, not significant; PTSD, post-traumatic stress disorder.