The original study by Yale University - Bränström & Pachankis (2019), analysed the health records of 2,679 Swedes diagnosed with gender dysphoria over 10 years - 2005 and 2015. They wanted to see whether hormonal or surgical treatments improved mental health over time. [ it sounds like they were analysing medical records data ... ].
The Study was published in American Journal of Psychiatry (AJP) 4 Oct 2019. It was reported by Pink News 15 Oct 2019, quoting co-author John Pachankis (associate professor at the Yale School of Public Health) who said: “No longer can we say that we lack high-quality evidence of the benefits of providing gender-affirming surgeries to transgender individuals who seek them”
AND THEN THIS HAPPENED ....
Researchers and scientists pointed out the study's methodological problems and challenged the conclusion. This included people from the Society for Evidence-Based Gender Medicine (SEGM), an international group of over 100 clinicians and researchers who JKR linked to in her Aug 2020 statement.
In response, the AJP editor requested an independent statistical review of the data, which led to a reanalysis of the data and an official correction.
After the re-analysis (2020), which may be interpreted in a number of ways, the Society for Evidence-Based Gender Medicine (SEGM) did a write up here: segm.org/ajp_correction_2020
Graphs in the SEGM write up, include 'hospitalisations following a suicide attempt':
- 13 (1.3%) in the 'surgery' group
- 7 (0.7%) in the 'no surgery' group
SEGM concluded:
- The mental health needs of people suffering from gender dysphoria are significantly greater than those of the general population, which confirms previous research
- No mental health benefit of hormonal interventions was demonstrated
- No mental health benefit of "gender-affirming" surgery was demonstrated
- Specific to the question of longitudinal association between time from surgery and mental health outcomes, due to unaddressed study design limitations, no improvement of mental health with time after surgery was demonstrated
- Despite the higher rate of suicide attempts requiring hospitalization in the "surgery" group, the study design precludes the assertion that that "gender-affirming" surgery is harmful
THERE'S HOPE....
Getting quality evidence and challenging bad evidence is on the increase. I'm so glad to see more grassroots science based initiatives starting. A space to watch.