Eaton et al. Respond

Sexual orientation and sex-related substance use: The unexplored role of bisexuality

Using alcohol and drugs in sexual contexts is associated with negative health consequences, including increased risk for HIV/STIs, sexual victimization, unplanned pregnancies, and overdose. Evidence suggests millions of adults regularly use alcohol in sexual contexts, thus increasing their risk for these consequences. However, no nationally representative estimates exist for rates of regular alcohol and/or drug use in sexual contexts. Additionally, previous studies suggest sexual minority individuals are more likely to use substances in sexual contexts than heterosexuals; however, none of these studies examined for multiple dimensions or subgroups of sexual orientation. Thus, using two distinct datasets-one large, nationally representative sample (N = 17,491) and an Internet-collected convenience sample (N = 1001)-we explored the associations between sexual orientation (dimensions and subgroups) and rates of regular sex-related alcohol and/or drug use in American adults. Results showed that sexual minority individuals were significantly more likely to report regularly using substances in sexual contexts compared to heterosexuals; however, results varied based on dimension of sexual orientation and by sex. Across both samples, bisexual individuals exhibited the highest rates of regular sex-related substance use. Findings suggest that sexual minorities, and bisexual individuals in particular, may be at increased risk for regular sex-related substance use and its associated negative health consequences. Future research should include nuanced and multidimensional assessments of sexual orientation to investigate sex-related alcohol and/or drug use and its associated risks, as well as examine the potential direct and indirect pathways by which these disparities may be conferred.

Sex-related substance use and the externalizing spectrum

BACKGROUND

Substance use before and during sexual activity is associated with many negative health outcomes. Estimates suggest that at least 4.3 million American adults annually engage in regular sex-related alcohol consumption, indicating that the intersection of substance use and sexual behavior is of public health concern. However, it is likely that when considering broader sex-related substance use, estimates would be notably higher. While substance use disorders and antisocial personality disorder have been associated with sex-related alcohol consumption, no study has investigated how regular sex-related substance use is associated with the broader transdiagnostic externalizing spectrum. Further, no studies have assessed whether or not sexual risk-taking behaviors can be integrated into the externalizing spectrum.

METHODS

In a large internet sample (N=936), we used confirmatory factor analysis, item response theory, and logistic regression to link sex-related alcohol and drug use to an externalizing latent variable; identified psychometric characteristics of these behaviors; and determined the extent to which one's externalizing level was associated with changes in odds of regular sex-related substance use. We then replicated these findings in a nationally representative sample (N=34,653).

RESULTS

Results highlighted the close association between sex-related substance use and externalizing, with externalizing increases being associated with significantly increased odds of regular sex-related substance use.

CONCLUSIONS

These findings bear notable implications for conceptualization and treatment of sex-related substance use. Transdiagnostic intervention can be an efficient means of addressing this problematic behavior as well as other comorbid presentations. Results expand the current conceptualization of the externalizing spectrum.