Prevalence and Correlates of Nonprescription Hormone Use Among Trans Women in São Paulo, Brazil.

Purpose: The purpose of this study was to determine the prevalence and correlates of nonprescription hormone use among Brazilian trans women. Methods: This study is a cross-sectional survey of trans women in São Paulo, Brazil, recruited by respondent-driven sampling in 2017-2019. Results: Of 790 trans women, 36.8% were taking nonprescribed hormones. Nonprescribed hormone use was higher with younger age, lower education, homelessness, and using estrogen plus progesterone. Lower use was associated with accessing health care and having trans-specific health needs met. Conclusion: Marginalized Brazilian trans women exhibit high use of nonprescription hormones, which may have health consequences and requires further examination and research.