Is there already discussion of this paper, by Sami-Matti Ruuska, Katinka Tuisku, Timo Holttine, Riittakerttu Kaltiala? If so I missed it. It's in Acta Paediatrica, which appears to be a reputable, peer-reviewed journal, and at a quick look the paper is a good one. Currently available without a paywall. Here's the abstract and link. My bold.
ABSTRACT
Aim: To examine the prevalence of severe psychiatric morbidity among gender-referred adolescents, focusing on gender differences and outcomes related to medical gender reassignment.
Methods: Finnish nationwide cohort of all under-23-year-old gender-referred individuals between 1996 and 2019 (n = 2 083) and16 643 matched controls. Cross-tabulations with X2 statistics and Cox regression were used to analyse the data.Results: Gender-referred adolescents showed significantly higher psychiatric morbidity than controls both before (45.7% vs.15.0%) and ≥ 2 years after referral (61.7% vs. 14.6%). Those referred after 2010 had greater psychiatric needs than earlier cohorts,both before (47.9% vs. 15.3%) and ≥ 2 years after (61.3% vs. 14.2%) referral. Among adolescents who underwent medical gender reassignment, psychiatric morbidity increased markedly during follow-up—rising from 9.8% to 60.7% in feminising gender re-assignment and from 21.6% to 54.5% in masculinising gender reassignment. After adjusting for prior psychiatric treatment, all gender-referred adolescents had similarly elevated risks of psychiatric morbidity, with hazard ratios approximately three times higher than female controls and five times higher than male controls.
Conclusion: Severe psychiatric morbidity is common among gender-referred adolescents and appears to be more prevalent in those referred after the recent surge in referrals. Psychiatric needs do not subside after medical gender reassignment.
https://doi.org/10.1111/apa.70533