Association between criminal history factors and risk of violence in individuals diagnosed with psychosis.

Note:k = number of studies analysed, I2 = percentage of variability in effect size estimates that is attributable to between-study variation. *** = significant to the 0.001 level. ** = significant to the 0.01 level. * = significant to the 0.05 level. Factors ranked according to pooled OR magnitude. 1When two small studies (Cheung, 1997c; Kim, 2009) were excluded, the association became: OR = 1.5, 95% CI 0.4–5.9, z = 0.6, I2 = 0%, p = 0.31, k = 1, n violent = 93, N Total = 186.