Consensus Parameter: Research Methodologies to Evaluate Neurodevelopmental Effects of Pubertal Suppression in Transgender Youth

Diane Chen, John F. Strang, Victoria D. Kolbuck, Stephen M. Rosenthal, Kim Wallen, Deborah P. Waber, Laurence Steinberg, Cheryl L. Sisk, Judith Ross, Tomas Paus, Sven C. Mueller, Margaret M. Mccarthy, Paul E. Micevych, Carol L. Martin, Baudewijntje P.C. Kreukels, Lauren Kenworthy, Megan M. Herting, Agneta Herlitz, Ira R.J.Hebold Haraldsen, Ronald DahlEveline A. Crone, Gordon J. Chelune, Sarah M. Burke, Sheri A. Berenbaum, Adriene M. Beltz, Julie Bakker, Lise Eliot, Eric Vilain, Gregory L. Wallace, Eric E. Nelson, Robert Garofalo

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Purpose: Pubertal suppression is standard of care for early pubertal transgender youth to prevent the development of undesired and distressing secondary sex characteristics incongruent with gender identity. Preliminary evidence suggests pubertal suppression improves mental health functioning. Given the widespread changes in brain and cognition that occur during puberty, a critical question is whether this treatment impacts neurodevelopment. Methods: A Delphi consensus procedure engaged 24 international experts in neurodevelopment, gender development, puberty/adolescence, neuroendocrinology, and statistics/psychometrics to identify priority research methodologies to address the empirical question: is pubertal suppression treatment associated with real-world neurocognitive sequelae? Recommended study approaches reaching 80% consensus were included in the consensus parameter. Results: The Delphi procedure identified 160 initial expert recommendations, 44 of which ultimately achieved consensus. Consensus study design elements include the following: a minimum of three measurement time points, pubertal staging at baseline, statistical modeling of sex in analyses, use of analytic approaches that account for heterogeneity, and use of multiple comparison groups to minimize the limitations of any one group. Consensus study comparison groups include untreated transgender youth matched on pubertal stage, cisgender (i.e., gender congruent) youth matched on pubertal stage, and an independent sample from a large-scale youth development database. The consensus domains for assessment includes: mental health, executive function/cognitive control, and social awareness/functioning. Conclusion: An international interdisciplinary team of experts achieved consensus around primary methods and domains for assessing neurodevelopmental effects (i.e., benefits and/or difficulties) of pubertal suppression treatment in transgender youth.

Original languageEnglish (US)
Pages (from-to)246-257
Number of pages12
JournalTransgender Health
Volume5
Issue number4
DOIs
StatePublished - Dec 2020

Keywords

  • Delphi
  • GnRHa
  • adolescents
  • expert consensus
  • puberty blockers
  • transgender

ASJC Scopus subject areas

  • Gender Studies
  • Medicine (miscellaneous)

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