UCSF

Background

Little is known about the association between trauma exposure and suicidal ideation across racial/ethnic groups. Our study aim was to determine the association between trauma exposure and suicidal ideation in a nationally representative ethnically diverse sample of adults.

Methods

This study included 14,866 White, Hispanic, Black, and Asian participants 18 years and older involved in the Collaborate Psychiatric Epidemiology Surveys (2001-2003), comprised of three nationally representative studies (NCS-R, NSAL, and NLAAS). Lifetime history of suicidal ideation as assessed in the World Health Organization's World Mental Health Survey Initiative version of the Composite International Diagnostic Interview (WMH-CIDI).

Results

Of the 81% respondents who reported being exposed to trauma as assessed in the WMH-CIDI, 12.1% endorsed lifetime suicidal ideation. Additionally, of the 19% who did not report trauma, 1.1% endorsed lifetime suicidal ideation. Fully adjusted, multivariable logistic regression models revealed two traumas consistently associated with significantly higher odds for suicidal ideation across all four racial groups examined: Assaultive/interpersonal violence and child maltreatment. Asians, in particular, had the highest likelihood for suicidal ideation in both trauma categories, with a near threefold increased odds for assaultive/interpersonal violence exposure (OR: 2.56; 95% CI: 1.71-3.83) and nearly ninefold increased odds for child maltreatment exposure (OR: 8.43; 95% CI: 4.91-14.49).

Discussion

Suicidal ideation in racially/ethnically diverse American adults is strongly associated with assaultive/interpersonal violence and child maltreatment, independent of PTSD, MDD, and substance use. These findings highlight the need for monitoring of suicidal behavior following assaultive/interpersonal trauma and child maltreatment, regardless of the presence of a psychiatric disorder.