Longitudinal associations between childhood sexual abuse-related PTSD symptoms and passive and active suicidal ideation among sexual minority men.

BACKGROUND

Sexual minority men report high rates of childhood sexual abuse (CSA) and adulthood suicidality. However, mechanisms (e.g., PTSD symptoms) through which CSA might drive suicidality remain unknown.

OBJECTIVE

In a prospective cohort of sexual minority men, we examined: (1) associations between CSA and suicidal thoughts and behaviors; (2) prospective associations between CSA-related PTSD symptoms and suicidal ideation; and (3) interpersonal moderators of these associations.

PARTICIPANTS AND SETTING

Participants included 6305 sexual minority men (M = 33.2, SD = 11.5; 82.0% gay; 53.5% White) who completed baseline and one-year follow-up at-home online surveys.

METHODS

Bivariate analyses were used to assess baseline demographic and suicidality differences between CSA-exposed participants and non-CSA-exposed participants. Among CSA-exposed participants, multivariable logistic regression analyses were used to regress passive and active suicidal ideation at one-year follow-up on CSA-related PTSD symptoms at baseline. Interactions were examined between CSA-related PTSD symptoms and interpersonal difficulties.

RESULTS

CSA-exposed sexual minority men reported two-and-a-half times the odds of suicide attempt history compared to non-CSA-exposed men (95% CI = 2.15-2.88; p < 0.001). Among CSA-exposed sexual minority men, CSA-related PTSD symptoms were prospectively associated with passive suicidal ideation (adjusted odds ratio [aOR] = 1.38; 95% CI = 1.19; 1.61). Regardless of CSA-related PTSD symptom severity, those with lower social support and greater loneliness were at elevated risk of active suicidal ideation at one-year follow-up.

CONCLUSIONS

CSA-related PTSD symptom severity represents a psychological mechanism contributing to CSA-exposed sexual minority men's elevated suicide risk, particularly among those who lack social support and report loneliness.