Table 3

 Prevalence and association between duration and number of deployments since 2000, for about a three year period, and psychological symptoms, adjusted for confounders and explanatory factors (n=5547)

VariablesPost-traumatic stress disorderPsychological distress caseMultiple physical symptomsSevere alcohol problems
No (%)Odds ratio (95% CI)*Odds ratio (95%CI)†No (%)Odds ratio (95% CI)*Odds ratio (95%CI)†No (%)Odds ratio (95% CI)*Odds ratio (95%CI)†No (%)Odds ratio (95% CI)*Odds ratio (95%CI)†
Duration of deployment (months):
 <5 26 (3.0)1.00 (0.61 to 1.64)1.13 (0.67 to 1.92)169 (19.1)1.12 (0.90 to 1.38)1.15 (0.91 to 1.45)88 (9.8)0.93 (0.71 to 1.22)0.97 (0.72 to 1.31)96 (10.9)0.70 (0.54 to 0.91)0.66 (0.50 to 0.88)
 5-8 55 (3.1)1.001.00308 (17.3)1.001.00192 (10.6)1.001.00298 (16.7)1.001.00
 9-12 60 (3.8)1.10 (0.75 to 1.61)0.96 (0.63 to 1.45)308 (19.2)1.10 (0.92 to 1.31)1.00 (0.82 to 1.22)173 (10.6)0.97 (0.78 to 1.21)0.88 (0.69 to 1.12)305 (19.0)1.02 (0.85 to 1.23)0.99 (0.82 to 1.21)
 ≥13 62 (5.2)1.58 (1.07 to 2.32)1.24 (0.81 to 1.89)257 (21.8)1.35 (1.10 to 1.63)1.17 (0.94 to 1.44)175 (14.5)1.49 (1.19 to 1.87)1.28 (0.99 to 1.64)285 (23.9)1.35 (1.11 to 1.64)1.18 (0.95 to 1.46)
No of deployments:
 1121 (3.8)1.001.00616 (18.8)1.001.00345 (10.3)1.001.00592 (18.1)1.001.00
 257 (3.4)0.93 (0.67 to 1.30)0.85 (0.59 to 1.22)320 (19.2)1.05 (0.90 to 1.23)1.02 (0.86 to 1.21)219 (13.0)1.25 (1.04 to 1.51)1.17 (0.96 to 1.44)301 (18.0)1.10 (0.93 to 1.29)1.10 (0.92 to 1.31)
 ≥325 (4.9)1.49 (0.94 to 2.37)1.32 (0.79 to 2.19)106 (21.0)1.27 (1.00 to 1.61)1.15 (0.89 to 1.50)64 (12.3)1.29 (0.97 to 1.73)1.20 (0.88 to 1.65)91 (17.7)1.23 (0.95 to 1.59)1.28 (0.97 to 1.68)

*Adjusted for age, sex, serving status, rank, marital status, and service.

†Adjusted for age, sex, serving status, rank, marital status, service, role in theatre, time spent in a forward area, problems at home, and type of deployment.