S. Bryn Austin ^1*, Andrea L. Roberts ², Heather L. Corliss ³, Beth E. Molnar ²

¹ Children's Hospital Boston
² Harvard School of Public Health
³ Children's Hospital, Boston

^* To whom correspondence should be addressed. E-mail: bryn.austin{at}tch.harvard.edu.

	Abstract

Objectives. We sought to examine sexual violence victimization in childhood and sexual risk indicators in young adulthood in a primarily Latina and Black cohort of "mostly heterosexual" and heterosexual women in the Project on Human Development in Chicago Neighborhoods (PHDCN).

Methods. In 2000, a comprehensive survey that assessed sexual orientation, sexual risk indicators, and sexual abuse victimization was completed by 391 young women (aged 18 to 24 years) who had participated in PHDCN. We used multivariable regression methods to examine sexual orientation group differences in sexual risk indicators and to assess whether childhood sexual abuse may mediate relationships.

Results. Compared with self-reported heterosexual women, self-reported "mostly heterosexual" women were more likely to report having been the victim of childhood sexual abuse, to have had a sexually transmitted infection, to report an earlier age of first sexual intercourse, and to have had more sexual partners. Childhood sexual abuse did not mediate relationships between sexual orientation and sexual risk indicators.

Conclusions. Our findings add to the evidence that "mostly heterosexual" women experience greater health risk than do heterosexual women. In addition, "mostly heterosexual" women are at high risk for having experienced childhood sexual abuse.

Key Words: Lesbian/Gay/Bisexual/Transgender Persons, Sexual Health, Women's Health