Evidence for an Altered Sex Ratio in Clinic-Referred Adolescents with Gender Dysphoria

• DOI: 10.1111/jsm.12817
• Publication Date: 2015-01-22T14:25:39Z
• Authors: Madison Aitken; Thomas D. Steensma; Ray Blanchard; Doug P. VanderLaan; Hayley Wood; Amanda Fuentes; Cathy Spegg; Lori Wasserman; Megan Ames; C. Lindsay Fitzsi...; Jonathan H. Leef; Victoria Lishak; Elyse Reim; Anna Takagi; Julia Vinik; Julia Wreford; Peggy T. Cohen-Ke...; Annelou L.C. de V...; Baudewijntje P.C....; Kenneth J. Zucker
• Keywords: Gender Dysphoria; Gender Identity Disorder; Female to male

ABSTRACT

Introduction The number of adolescents referred to specialized gender identity clinics for gender dysphoria appears to be increasing and there also appears to be a corresponding shift in the sex ratio, from one favoring natal males to one favoring natal females.

Aim We conducted two quantitative studies to ascertain whether there has been a recent inversion of the sex ratio of adolescents referred for gender dysphoria.

Methods The sex ratio of adolescents from two specialized gender identity clinics was examined as a function of two cohort periods (2006–2013 vs. prior years). Study 1 was conducted on patients from a clinic in Toronto, and Study 2 was conducted on patients from a clinic in Amsterdam.

Results Across both clinics, the total sample size was 748. In both clinics, there was a significant change in the sex ratio of referred adolescents between the two cohort periods: between 2006 and 2013, the sex ratio favored natal females, but in the prior years, the sex ratio favored natal males. In Study 1 from Toronto, there was no corresponding change in the sex ratio of 6,592 adolescents referred for other clinical problems.

Conclusions Sociological and sociocultural explanations are offered to account for this recent inversion in the sex ratio of adolescents with gender dysphoria.