8768 Initiation of Exogenous Sex Hormones in a Pediatric Gender Clinic

Abstract Disclosure: C.M. Roberts: None. M.M. Knoll: None. G. Robertson: None. A. Egan: None. C. Moser: None. Introduction: The demographics of patients seeking care for gender dysphoria have changed significantly since care was started in 1987. The criteria for prescribing sex hormones have also evolved to allow a greater range of patients to receive gender-affirming hormones. We examined factors associated with prescription of gender-affirming hormones to patients presenting for gender-affirming care our clinic. Methods: Secondary analysis of sex hormone initiation as a minor among 14-17-year-old adolescents diagnosed with gender dysphoria, seen in the pediatric gender clinic between 2/19/2018 and 7/20/2022. We extracted demographic variables, appointment dates, and sex hormone prescription data from our electronic medical record. We collected patient reports of gender identity and suicidal behavior, and parent and adolescent reports of general adolescent well-being, months of gender dysphoria and social transition, and parental support for the adolescent’s gender identity from electronic clinic surveys. Results: We identified 273 adolescent-parent dyads with complete data. Most of our sample were assigned female at birth (74.4%), transgender male (59.3%), and white (83.5%) adolescents who lived in urban (86.4%) and lower-middle-income (64.5%) areas. The average age was 15.9+/-1.1 years. A minority of adolescents reported recent suicidal ideation 60/273 (22%), and prior suicide attempts 20/273 (7%). Parents reported a shorter duration of gender dysphoria (-16.7 months (95%CI: -22.0, -11.5)) and social transition (-4.7: -6.5, -3.0), and higher levels of parental support than adolescents. Approximately half, 146/273 (53.5%), of adolescents started sex hormones. The average age at initiation was 16.5 years +/- 0.9. Age at presentation, length of gender dysphoria or social transition, and the presence of suicidal ideation or attempts were not associated with initiation of sex hormones. Assigned males (OR:1.82:95%CI 1.04, 3.19), adolescents with higher parent-reported parental support for the adolescent’s identity (1.03:1.01, 1.04), and adolescents with private insurance rather than Medicaid (Blue Cross- 5.39:2.73, 10.64) were more likely to start sex hormones as a minor. Conclusion: Published criteria for the initiation of sex hormones among adolescents with gender dysphoria, including age, persistence of dysphoria, and the presence of suicidality, did not predict the prescription of sex hormones to minors in our clinic. Parent-reported support for the adolescent’s gender identity played a small role in predicting the prescription of hormones, but male sex assigned at birth and having private health insurance played larger roles. Further exploration of these findings is needed to ensure equity in the treatment of gender dysphoria. Presentation: 6/3/2024