Trans research and scientific consensus
(2020) - Study of 139,829 students finds that in comparison to other students, transgender identity, especially non-binary identity, is associated more with perpetrating bullying than being bullied. Non-binary identity was most strongly associated with involvement in bullying, followed by [transgender] opposite sex identity and cisgender identity.
(2023) 21 leading experts on pediatric gender medicine from 8 countries wrote a letter to Wall Street Journal expressing disagreement over how gender dysphoria in youth is treated, voicing concerns against things such as the affirmative model and research conducted outside of the US has found hormonal interventions for gender dysphoria to be without reliable evidence. Among these international experts is Dr. Rita Kaltiala, chief psychiatrist at Tampere university gender clinic and author of several peer-reviewed studies on trans medicine and Finland's top authority on pediatric gender care.
(2023) Landmark study from Denmark on 3,800 transgender patients pulled data from hospital records and applications from legal gender changes and discovered 43% of this group had a psychiatric illness compared with 7% of non-trans group, and despite "gender affirming care" and legal gender changes, still had 7.7 the rate of suicide attempts and 3.5 times the rate of suicide deaths. Researchers state this rate is likely even higher due to missing data.
(2016) Study finds association with increased risk of multiple sclerosis for trans women taking estrogen/reducing testosterone levels.
(2023) Metadata study shows, at best, no improvement for patients in gender-affirming care. "The conclusions of the systematic reviews of evidence for adolescents are consistent with long-term adult studies, which failed to show credible improvements in mental health and suggested a pattern of treatment-associated harms. Three recent papers examined the studies that underpin the practice of youth gender transition and found the research to be deeply flawed. Evidence does not support the notion that “affirmative care” of today’s adolescents is net beneficial."
(2011) Long term follow up of 324 transgender people having undergone sex reassignment surgery in Sweden, found that trans women retained male patterned incidents and rates of violence and had a greater significance and rate of rape and sexual violence than cisgender men. The study also found, "Persons with transsexualism, after sex reassignment, have considerably higher risks for mortality, suicidal behaviour, and psychiatric morbidity than the general population. Our findings suggest that sex reassignment, although alleviating gender dysphoria, may not suffice as treatment for transsexualism, and should inspire improved psychiatric and somatic care after sex reassignment for this patient group."
(2020) Largest study to date on 641,860 people finds association with autism and "gender diversity", "Gender-diverse people also report, on average, more traits associated with autism, such as sensory difficulties, pattern-recognition skills and lower rates of empathy — or accurately understanding and responding to another person’s emotional state".
(2022) US study examining 10 years of data on 952 people finds large percentages of young adults prescribed hormones for trans identity no longer getting the drugs 4 years later. Discontinuation rate for both sexes combined = 30%. Female discontinuation rate as high as 44%. The standard disinformation pushed is that only 1-2% of people who begin medical transition end up desisting. But these figures show that in this cohort of young adults, the overall rate of discontinuing hormone treatment ranged from a low of 10% to a high of 44% within a space of just 4 years.
Abruzzese et al. 2023 'The Myth of “Reliable Research” in Pediatric Gender Medicine: A critical evaluation of the Dutch Studies—and research that has followed'
