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Table 3 Pooled prevalances and heterogeneity between samples (meta-analysis performed with random effect model)

From: Prevalence of PTSD and other mental disorders in UK service personnel by time since end of deployment: a meta-analysis

Time since end of deployment

Studies (total N)

PCL-C1

GHQ1

AUDIT1

% (95 % CI)

I2%, p-value

% (95 % CI)

I2%, p-value

Studies (total N)

% (95 % CI)

I2%, p-value

Mid-deployment

2 (3405)

2.5 (1.6–3.4)

59.2, 0.086

17.6 (15.2–20.0)

66.6, 0.05

-

-

-

Returning from deployment

2 (3712)

2.0 (1.1–2.9)

68.3, 0.08

12.1 (6.3–17.8)

96.4, <0.001

-

-

-

<3 months post-deployment

4 (9398)

2.9 (1.5–4.4)

58.6, 0.065

14.4 (12.7–16.1)

6.1, 0.29

4 (9253)

17.1 (11.6–22.6)

78.9, 0.003

3–6 months post-deployment

3 (863)

2.6 (1.4–3.8)

0.0, 0.39

19.4 (13.9–22.5)

49.7, 0.14

3 (734)

14.1 (10.4–15.9)

0.0, 0.70

6–11 months post-deployment

3 (1332)

3.2 (2.2–4.2)

0.0, 0.86

19.0 (16.6–21.5)

0.0, 0.52

3 (1072)

19.2 (15.8–22.6)

9.8, p = 0.33

12–17 months post-deployment

3 (2062)

3.1 (2.3–3.9)

0.0, 0.55

17.7 (15.9–19.4)

0.0, 0.40

3 (1819)

17.5 (14.0–21.0)

63.7, p = 0.064

18–23 months post-deployment

3 (2228)

2.5 (0.2–4.8)

92.4, < 0.001

19.2 (14.7–23.7)

76.4, 0.014

3 (2025)

16.4 (14.7–18.1)

0.0, p = 0.88

24+ months post-deployment

3 (2993)

4.3 (2.9–5.7)

54.5, 0.11

20.5 (18.7–22.2)

9.6, 0.33

3 (2880)

15.4 (10.5–20.3)

86.5, p = 0.001

  1. GHQ-12 12-item General Health Questionnaire, PCL-C Post-traumatic stress Check List – Civilian version, AUDIT 10-item WHO Alcohol Use Disorders Identification Test