Predictors of Suicide
A stepwise logistic regression that included all significant variables and their interaction with age showed that cluster B personality disorders and alcohol abuse/dependence in the last 6 months were two independent predictors of suicide in major depressive disorder. The adjusted odds ratio for cluster B personality disorders was 16.59 (95% CI=2.02–136.24), and the adjusted odds ratio for alcohol abuse/dependence for the last 6 months was 4.08 (95% CI=1.38–12.06). No interaction term was a significant predictor of suicide outcome. Figure 1 illustrates the major predictors of suicide and other variables that significantly correlated with these predictors.