The effect of cancer on suicide in ethnic groups with a differential suicide risk.

This study examined the suicide risk among persons with cancer in ethnic groups with differential suicide mortality in the general population. We calculated the suicide standardized incidence ratios (SIRs) among Europe-America and Asia-North Africa-born Israelis with cancer, relative to the respective rates in the general population. The SIRs were higher in the European-American group [men: 1.96, 95% confidence interval (CI) 1.62-2.30; women: 2.03, 95% CI 1.51-2.56], but not significantly different in the Asian-North African group (men: 0.86, 95% CI 0.52-1.20; women: 0.80, 95% CI 0.10-1.50). Assessment of suicide risk must consider the 'suicide culture' of the person with cancer.