Objective
No representative population-based studies of youth in the US exist on gender identity-related disparities in suicidal ideation or on factors that underlie this disparity. To address this, we: (1) examined gender identity-related disparities in the prevalence of suicidal ideation; (2) evaluated whether established psychosocial factors explained these disparities; and (3) identified correlates of suicidal ideation among all youth and stratified by gender identity.
Method
Data were derived from the 2013–2015 California Healthy Kids Survey (CHKS; N=621,189) and a weighted subsample representative of the Californian student population (Biennial Statewide California Student Survey [CSS; N = 28,856]).
Results
Prevalence of past 12-month self-reported suicidal ideation was nearly twice as high for transgender compared to non-transgender youth (33.73% versus 18.85%; χ2 = 35.48, p <.001). In fully adjusted models within the representative sample, transgender youth had 2.99 higher odds (95% CI: 2.25, 3.98) of reporting past-year suicidal ideation compared to non-transgender youth. Among transgender youth, only depressive symptoms (AOR: 5.44, 95% CI:1.81, 16.38) and victimization (AOR: 2.66, 95 CI%: 1.26, 5.65) remained significantly associated with higher odds of suicidal ideation in fully adjusted models. In multiple mediation analyses, depression attenuated the association between gender identity and suicidal ideation by 17.95%, and victimization by 14.71%.
Conclusion
This study uses the first representative population-based sample of youth in the US that includes a measure of gender identity to report on gender identity-related disparities in suicidal ideation and to identify potential mechanisms underlying this disparity in a representative sample.