http://www.thetrevorproject.org/pages/facts-about-suicide 

"Suicide is the 2nd leading cause of death among young people ages 10 to 24. [1]

• The rate of suicide attempts is 4 times greater for LGB youth and 2 times greater for questioning youth than that of straight youth. [2]

• Suicide attempts by LGB youth and questioning youth are 4 to 6 times more likely to result in injury, poisoning, or overdose that requires treatment from a doctor or nurse, compared to their straight peers.

*LGB youth who come from highly rejecting families are 8.4 times as likely to have attempted suicide as LGB peers who reported no or low levels of family rejection. [4]

• Each episode of LGBT victimization, such as physical or verbal harassment or abuse, increases the likelihood of self-harming behavior by 2.5 times on average."