LGBTQIA+ vs the Brazilian Unified Health System: Basic Health Unit Use and Associated Factors.

The Brazilian Unified Health System provides universal health care access without regard to sexual orientation and gender identity. We conducted a nationwide study with a cross-sectional design and intentional sampling methods to investigate factors associated with Basic Health Unit (BHU) use by the LGBTQIA+ community. Data were collected via a questionnaire available through social networks. Statistical analysis included Poisson regression with robust variance. A total of 603 LGBTQIA+ community members participated in the study, of whom 417 (69.2%) had visited a BHU in the last year. The factors "transgender woman" and "self-rated health status as very good/good/fair" increased the probability of BHU use in the last year by 10% (PR: 1.10; 95% CI: 1.00-1.20) and 9% (PR = 1.09; 95% CI: 1.01-1.18), respectively. "Not suffering sexual orientation-related discrimination at a BHU" and "Not suffering discrimination by a receptionist or waiting room worker" increased the probability of use by 28% (PR = 1.28; 95% CI: 1.22-1.34) and 22% (PR = 1.22; 95% CI: 1.14-1.30), respectively. Our study supports evidence that access to primary health care services in Brazil can be influenced by the social determinants gender identity and sexual discrimination.