Androgenetic Alopecia in COVID-19: Compared to What?

The study by Wambier et al. proposes an association between androgenetic alopecia (AGA) and severe manifestations of COVID-19. However, the literature cited by Wambier et al. suggests that the prevalence of AGA in hospitalized COVID-19 patients is close to the expected rate. While male sex and older age may be risk factors for COVID-19 mortality, the hypothesis that AGA may be independently associated with severe manifestations of COVID-19 remains a matter of conjecture.