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Table 2 Prevalence of mental disorder in IDPs at baseline, in those remaining in displacement and return migrants at 12 month follow-up

From: Changes in mental disorder prevalence among conflict-affected populations: a prospective study in Sri Lanka (COMRAID-R)

Mental disorder Prevalence % (95% CI) Differences in prevalence (95% CI)*
  1. Baseline sample (2011) 2. Previous participants still displaced in 2012 3. Return migrants recruited in 2012 Groups 1 and 2 Groups 1 and 3 Groups 2 and 3
Total sample (N = 450) (N = 324) (N = 242)    
Any CMD 18.8 (15.2–22.5) 8.6 (5.6–11.7) 10.3 (6.5–14.1) -10.2 (-14.9,-3.4) -8.5 (-13.7,-3.2) -1.7 (-6.5, 3.1)
Somatoform 14.0 (10.7–17.9) 5.9 (3.3–8.4) 9.5 (5.8–13.2) -8.1 (-12.2,-4.0) -4.5 (-9.3, 0.3) -3.6 (-8.0, 0.8)
Major depression 5.1 (3.2–7.7) 2.2 (0.6–3.8) 0.8 (0.03–1.9) -2.9 (-5.4,-0.3) -4.3 (-6.6,-1.9) -1.4 (-3.3, 0.5)
Other depression 7.3 (5.3–10.3) 2.5 (0.5–3.2) 4.1 (1.6–6.4) -4.8 (-7.7,-1.8) -3.2 (-6.6, 0.2) -1.6 (-4.6, 1.4)
Anxiety 1.3 (0.4–2.9) 0.3 (0.01–0.9) 0.4 (0.04–1.2) -1.0 (-2.2, 0.2) -0.9 (-2.2, 0.4) -0.1 (-1.1, 0.8)
PTSD 2.4 (1.2–4.3) 0.3 (0.01–0.9) 1.6 (0.4–3.2) -2.1 (-3.6,-0.5) -0.8 (-2.9, 1.3) -1.3 (-2.9, 0.3)
CMD present** (N = 85) (N = 28) (N = 25)    
Somatoform 72.9 (63.4–82.3) 67.8 (50.4–85.1) 92.0 (81.4–100.0)    
Major depression 27.0 (17.6–36.4) 25.0 (8.9–41.0) 8.0 (2.6–18.6)    
Other depression 45.9 (35.3–56.4) 28.5 (11.7–45.2) 40.0 (20.7–59.2)    
Anxiety 31.7 (21.8–41.6) 3.6 (3.3–10.5) 4.0 (3.6–11.7)    
PTSD 8.2 (2.4–14.0) 3.6 (3.3–10.5) 4.0 (3.6–11.7)    
  1. *Statistically significant differences in prevalence are indicated in bold font.
  2. **Prevalence difference were not calculated due to small sample sizes.