Risk factors for ovarian cancer: lesbian and heterosexual women

To compare the distribution of risk factors for developing ovarian cancer in lesbian and heterosexual women.

Secondary analysis of a retrospective medical record review.

Urban health clinic with special outreach to lesbians.

Typical participant (N = 1,019) was 42.9 years old and white (70%). Most were without health insurance, and 99% were poor (< $15,780 annual income). The majority (58%, n = 586) described themselves as heterosexual; 42% (n = 433) said they were lesbian.

Data were collected from medical records and analyzed using analysis of covariance and logistic regression techniques.

Ovarian cancer risk factors (parity, exogenous hormone use, smoking, body mass index [BMI], and tubal ligation/hysterectomy).

Lesbians had a higher BMI; heterosexual women had higher rates of current smoking and a higher incidence of the protective factors of pregnancy, children, miscarriages, abortions, and use of birth control pills.

The results of this study indicate that lesbians may have an increased risk for developing ovarian cancer. A study designed specifically to explore the risk factors of lesbian and heterosexual women for developing ovarian cancer must be undertaken to confirm these findings.

Differences in risk levels may exist for lesbians; therefore, healthcare providers must become comfortable asking questions about sexual orientation and behavior.