@article{01HQAHTP27N1VD8QWHE6PWBRFB,
  abstract     = {{Study objectives: Transgender persons can use gender-affirming hormone therapy (GAHT) to align their physical appearance with their identified gender. Many transgender persons report poor sleep, but the effects of GAHT on sleep are unknown. This study examined the effects of a 12 months of GAHT use on self-reported sleep quality and insomnia severity.Methods: A sample of 262 transgender men (assigned female at birth, started masculinizing hormone use) and 183 transgender women (assigned male at birth, started feminizing hormone use), completed self-report questionnaires on insomnia (range 0-28), sleep quality (range 0-21) and sleep onset latency, total sleep time and sleep efficiency before start of GAHT and after 3, 6, 9, and 12 months of GAHT.Results: Reported sleep quality showed no clinically significant changes after GAHT. Insomnia showed significant but small decreases after 3 and 9 months of GAHT in trans men (-1.11; 95%CI:-1.82;-0.40 and-0.97; 95%CI:-1.81;-0.13, respectively) but no changes in trans women. In trans men, reported sleep efficiency decreased by 2.8% (95%CI:-5.5%;-0.2%) after 12 months of GAHT. In trans women, re-ported sleep onset latency decreased by 9 min (95%CI:-15;-3) after 12 months of GAHT. Conclusions: These findings show that 12 months of GAHT use did not result in clinically significant changes in insomnia or sleep quality. Reported sleep onset latency and reported sleep efficiency showed small to modest changes after 12 months of GAHT. Further studies should focus on underlying mecha-nisms by which GAHT could affect sleep quality.& COPY; 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).}},
  author       = {{Morssinkhof, Margot W. L. and  Wiepjes, Chantal M. and  Bosman, Breanna W. and  Kinds, Jim and  Fisher, Alessandra D. and  Greenman, Yona and  Kreukels, Baudewijntje P. C. and T'Sjoen, Guy and  van der Werf, Ysbrand D. and  den Heijer, Martin and  Broekman, Birit F. P.}},
  issn         = {{1389-9457}},
  journal      = {{SLEEP MEDICINE}},
  keywords     = {{Transgender,Testosterone,Estrogen,Endocrinology,Sleep quality,Insomnia}},
  language     = {{eng}},
  pages        = {{316--326}},
  title        = {{Sex hormones, insomnia, and sleep quality : subjective sleep in the first year of hormone use in transgender persons}},
  url          = {{http://doi.org/10.1016/j.sleep.2023.04.028}},
  volume       = {{107}},
  year         = {{2023}},
}

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