“Social contagion” is not driving an increasing number of adolescents to come out as transgender, according to a new study published Wednesday in the journal Pediatrics. The study also found that the proportion of adolescents who were assigned female at birth and have come out as transgender also has not increased, which contradicts claims that adolescents whose birth sex is female are more susceptible to this so-called external influence. “The hypothesis that transgender and gender diverse youth assigned female at birth identify as transgender due to social contagion does not hold up to scrutiny and should not be used to argue against the provision of gender-affirming medical care for adolescents,” study senior author Dr. Alex S. Keuroghlian, director of the National LGBTQIA+ Health Education Center at the Fenway Institute and the Massachusetts General Hospital Psychiatry Gender Identity Program, said in a statement.