Sex workers' professional agency, quality of life, and problematic substance use in Finland.

Our results underscore the importance of professional agency to sex workers' well-being, explaining a substantial proportion of the variance in quality of life. Promoting agency should therefore be at the heart of sex work policymaking. However, as most of the respondents were Finnish-born cis women, our results might not generalize to foreign-born, male, and gender diverse sex workers. Future studies should prioritize reaching these populations to ensure broader representativeness.