Risk for suicidal ideation among the offspring of bipolar parents: results from the Bipolar Offspring Study (BIOS).

The objective of the study was to examine rates and identify risk factors for suicidal ideation among offspring of parents with bipolar disorder. Subjects included 388 offspring of parents with bipolar disorder and 250 offspring of matched community controls enrolled in the Pittsburgh Bipolar Offspring Study (BIOS). Offspring of bipolar probands displayed greater rates of lifetime suicidal ideation than offspring of controls (33% versus 20%). Factors most strongly associated with lifetime suicidal ideation in offspring of bipolar parents included offspring mood disorder, hostility, recent sexual abuse, and family conflict. Offspring of parents with bipolar disorder are at elevated risk for suicidal ideation as compared with offspring of controls. Suicide risk assessment in this population should attend to specific risk factors identified.