Bisexual suicide risk: High rates of suicide have consistently been reported among homosexuals, particularly among adolescents and young adults. A 1989 report concluded that "gay youth are 2 to 3 times more likely to attempt suicide than other young people. They may comprise up to 30% of completed youth suicides annually."

In 1999 it was reported in two independent studies (one of twins in the U.S. and the other with 21-year follow-up in New Zealand) that homosexual and bisexual men and women are at greater risk of suicidal ideation and overall mental health problems than their heterosexual counterparts.

References:

1. Herrell R, Goldberg J, True WR, Ramakrishnan V, Lyons M, Eisen S, Tsuang MT: Sexual orientation and suicidality. A co-twin control study in adult men. Arch Gen Psychiatry 1999;56:867-874.
2. Fergusson DM, Horwood LJ, Beautrais AL: Is sexual orientation related to mental health problems and suicidality in young people? Arch Gen Psychiatry. 1999;56:876-880.
3. Bailey JM: Homosexuality and mental illness. Arch Gen Psychiatry. 1999;56:883-884.