Summary
WPATH, the main international trans health body, part-funded Johns Hopkins to review the evidence for its 2022 treatment guidelines. The reviewers found 20 studies, mostly small European clinic studies. These reported better quality of life and less depression and anxiety after starting hormones, and none reported harm to mental health. But the reviewers rated every conclusion as low-quality evidence, because of biased study designs, small numbers and the effects of surgery being mixed in. Only one study looked at suicide, so no conclusion was possible. The authors still called hormones 'essential' care, a stronger claim than their own ratings support. Court documents released in 2024 showed WPATH tried to control what the Hopkins team could publish. This was the only review published after WPATH brought in an approval rule. It shows weak evidence, not proven benefits.
Key findings
- Apžvalgoje buvo 20 tyrimų 22 straipsniuose. Tik vienas buvo atsitiktinių imčių tyrimas; dauguma stebėjo pacientų grupes laikui bėgant, o keturi buvo vieno laiko momento nuotraukos.
- Dauguma tyrimų turėjo mažiau nei 60 žmonių, visi iš specializuotų lyties klinikų. Aštuoni iš 20 buvo iš Italijos, ir tik 3 nagrinėjo paauglius.
- Hormonai buvo siejami su geresne gyvenimo kokybe (7 tyrimai), mažesne depresija (12 tyrimų) ir mažesniu nerimu (8 tyrimai), bet keli tyrimai pokyčio nerado.
- Apžvalgininkai įrodymus apie gyvenimo kokybę, depresiją ir nerimą įvertino kaip žemos kokybės ir negalėjo padaryti jokios išvados apie savižudybę.
- Vienintelis savižudybės tyrimas, iš Amsterdamo klinikos, nustatė, kad translyčių moterų savižudybių rodiklis buvo 5,7 karto didesnis nei bendros populiacijos. Apžvalgininkai jį įvertino kaip turintį rimtą šališkumo riziką.
- Olandų paauglių grupėje depresija sumažėjo vartojant brendimo blokatorius (vaistus, sustabdančius brendimą), bet vėliau pradėjus priešingos lyties hormonus bendras pagerėjimas, palyginti su pradžia, nebebuvo aiškus.
- WPATH užsakė ir iš dalies apmokėjo apžvalgą, kad ji padėtų parengti jos gydymo gaires.
- 2024 m. paskelbti teismo dokumentai rodo, kad WPATH siekė teisės tvirtinti Hopkinso komandos straipsnius ir kad tai buvo vienintelis straipsnis, paskelbtas po to, kai WPATH įvedė tokią taisyklę.
Abstract
We sought to systematically review the effect of gender-affirming hormone therapy on psychological outcomes among transgender people. We searched PubMed, Embase, and PsycINFO through June 10, 2020 for studies evaluating quality of life (QOL), depression, anxiety, and death by suicide in the context of gender-affirming hormone therapy among transgender people of any age. We excluded case studies and studies reporting on less than 3 months of follow-up. We included 20 studies reported in 22 publications. Fifteen were trials or prospective cohorts, one was a retrospective cohort, and 4 were cross-sectional. Seven assessed QOL, 12 assessed depression, 8 assessed anxiety, and 1 assessed death by suicide. Three studies included trans-feminine people only; 7 included trans-masculine people only, and 10 included both. Three studies focused on adolescents. Hormone therapy was associated with increased QOL, decreased depression, and decreased anxiety. Associations were similar across gender identity and age. Certainty in this conclusion is limited by high risk of bias in study designs, small sample sizes, and confounding with other interventions. We could not draw any conclusions about death by suicide. Future studies should investigate the psychological benefits of hormone therapy among larger and more diverse groups of transgender people using study designs that more effectively isolate the effects of hormone treatment.
Conclusion
Hormone therapy was associated with increased QOL, decreased depression, and decreased anxiety, with similar associations across gender identity and age. Certainty in this conclusion is limited by high risk of bias in study designs, small sample sizes, and confounding with other interventions; the strength of evidence for each outcome was graded low. No conclusions could be drawn about death by suicide. Despite these limitations, the authors stated that hormone therapy is likely associated with improvements in QOL, depression and anxiety, that no study showed harm to mental health, and that these benefits make hormone therapy 'an essential component of care'. They called for larger, more diverse studies using designs that better isolate the effects of hormones.