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Table 5 Previous suicide attempt or deliberate self-harm, and suicide risk

From: Suicidal risk factors and completed suicide: meta-analyses based on psychological autopsy studies

Author, published year (reference no.) Country No. of cases/controls Age class, proportion of male (%) Source of controls Previous suicide attempt or deliberate self-harm OR (95% CI)a
Appleby et al. 1999 [20] UK 84/64 Young, 81 GP lists Deliberate self-harm 31.67 (9.96–128)
Foster et al. 1999 [21] Ireland 116/116 All, 79 GP lists (deceased) Deliberate self-harm 13.97 (6.03–35.82)
Vijayakumar et al. 1999 [19] India 100/100 All, 55 Community Previous suicide attempt 5.17 (2.04–14.71)
Brent et al. 1999 [18] US 140/131 Young, 77 Community Previous suicide attempt 89.27 (14.60–3,613)
Cheng et al. 2000 [38] Taiwan 113/226 All, 62 Community Previous suicide attempt 6.50 (2.77–16.45)
Hawton et al. 2002 [34]c UK 42/84 All, 0 Female nurses Deliberate self-harm 102.50 (20.46–931)
Phillips et al. 2002 [35] China 519/536 All, 63 Community (deceased) Previous suicide attempt 36.22 (14.89–114)
Owens et al. 2003 [24] UK 100/100 All, 67 GP lists Deliberate self-harm 63.30 (10.00–2,588)
Gururaj et al. 2004 [26] India 269/269 All, 64 Community Previous suicide attempt 38.77 (6.37–1,581)
Chiu et al. 2004 [36] Hong Kong 70/100 Old, 44 Community Previous suicide attempt 39.60 (5.89–1,657)
Zonda et al. 2006 [31] Hungary 100/100 All, 67 Community (deceased) Previous suicide attempt 2.27 (1.05–5.04)
Summaryb No. of populations
Total (both genders) 10 1,611/1,742       16.33 (7.51–35.52)
*P < 0.001
  1. GP general practitioner
  2. *P for heterogeneity (Cochran Q test)
  3. aCrude odds ratio and 95% confidence interval
  4. bBased on random effects model
  5. cWomen only