Risk Factors Related to Intimate Partner Violence in Same- and Different-Sex Couples.

Despite its high prevalence in same-sex couples, the study of intimate partner violence (IPV) has been mostly focused on different-sex couples. When lesbian, gay, and bisexual (LGB) samples are considered, similarities between same- and different-sex couples arise, as well as some specificities regarding same-sex couples. Although several studies report a higher IPV prevalence among LGB couples in comparison to heterosexual couples, less research focuses on the differences among the violent dynamics and the influence of risk factors, and most do not consider a Spanish sample. After being recruited on social networks and Spanish lesbian, gay, bisexual and trans (LGBT) associations, a sample of 605 Spanish people participated in this study (71.7% female and 35.7% engaged in a same-sex relationship) through an online survey that included self-reported measures on IPV experiences and behavioral risk factors (witnessing interparental violence; risky sexual behaviors; tobacco, alcohol, and drug consumption). Results suggest a similar IPV prevalence between same- and different-sex couples. Moreover, different IPV types presented comparable prevalence among individuals engaged in gay and lesbian couples. Multinomial logistic regressions showed IPV and partner's sex have a significant effect on an individual adopting risky sexual behaviors and consuming alcohol, with those behaviors having a higher prevalence in individuals engaged in same-sex couples. These results differed by sex, as the impact of IPV and partner's sex on adopting risky sexual behaviors and consuming alcohol only existed among female participants. Our findings accentuate the need to consider the different pressures and IPV experiences among same- and different-sex couples while creating interventions. [ABSTRACT FROM AUTHOR]