From: Pain in veterans of the Gulf War of 1991: a systematic review
Study | Period of prevalence estimate | Prevalence GWV | Prevalence NGV | OR (95% CI) | % weight in meta-analysis |
---|---|---|---|---|---|
Sostek 1996 | Current symptoms | 70% | 9% | 23.5 (7.27–76.1) | 6.5 |
Kang 2000 | Time period unclear | 23% | 12% | 2.19 (2.03–2.36) | 32.2 |
Knoke 2000 | Current symptoms | 3.4% | 1.3% | 2.74 (1.31–5.73) | 12.6 |
Steele 2000 | Symptoms past 12 months | 15% | 4% | 4.33 (2.57–7.28) | 18.2 |
Cherry 2001 | Symptoms past month | Mean score approx 4.0 | Mean score approx 2.5 | ||
Gray 2002 | Symptoms past 12 months | 13.4% | DEV 5.1% NDV 4.4% | 2.87 (2.45–3.36) | 30.5 |
Summary OR (95% CI) | 3.23 (2.31–4.51) Heterogeneity χ 2 = 29.8, df = 4, P < 0.001 |