Sexual Orientation Identity Disparities in Mammography Among White, Black, and Latina U.S. Women.

Abstract

Purpose: Our goal was to examine sexual orientation identity disparities in mammography in relationship to race/ethnicity among U.S. women. Methods: Using nationally representative 2013-2017 National Health Interview Survey data, we used multivariable logistic regression to estimate the odds of receiving a mammogram in the past year in relationship to sexual orientation identity among White, Black, and Latina U.S. women 40-75 years of age (N = 45,031) separately, adjusting for demographic factors. We also assessed whether socioeconomic and health care factors attenuated sexual orientation identity disparities in mammography across racial/ethnic groups. Results: Among White women, bisexual women had significantly lower adjusted odds of mammography compared to heterosexual women (odds ratio = 0.70, 95% confidence interval: 0.50-0.99). Among Black women, the adjusted odds of mammography were significantly higher among bisexual women relative to heterosexual women (2.53, 1.08-5.92). Black lesbian women appeared to have lower adjusted odds of mammography compared to their heterosexual counterparts; however, this difference was not statistically significant (0.80, 0.46-1.38). Similarly, among Latina women, lesbian women also seemed to have lower adjusted odds of mammography relative to heterosexual women, but this disparity was also not statistically significant (0.64, 0.37-1.13). Adding socioeconomic factors completely attenuated the disparity between White bisexual and heterosexual women (0.76, 0.52-1.10). Conclusions: Sexual orientation identity disparities in receiving a mammogram in the past year differed in relationship to race/ethnicity among White, Black, and Latina U.S. women. Additional research with larger samples of Black and Latina lesbian and bisexual women is needed to more accurately estimate and explain observed differences.