Breast cancer risk in transgender people receiving hormone treatment: nationwide cohort study in the Netherlands

Abstract Objective To investigate the incidence and characteristics of breast cancer in transgender people in the Netherlands compared with the general Dutch population. Design Retrospective, nationwide cohort study. Setting Specialised tertiary gender clinic in Amsterdam, the Netherlands. Participants 2260 adult trans women (male sex assigned at birth, female gender identity) and 1229 adult trans men (female sex assigned at birth, male gender identity) who received gender affirming hormone treatment. Main outcome measures Incidence and characteristics (eg, histology, hormone receptor status)... Mehr ...