Summary
Using Taiwan's national health insurance records, researchers followed about 3,900 people diagnosed with gender identity disorder by psychiatrists. They compared their deaths with matched members of the public and with their own non-trans brothers and sisters. Over about nine years, trans people had a 40% higher death rate than the public and about four times the suicide rate. Deaths from accidents and illness were not higher. Compared with siblings, who share family background and genes, overall deaths were no higher, but suicide was still about 2.6 times higher. Depression, anxiety and other mental illnesses were several times more common in the trans group, and taking depression into account shrank the suicide link the most. The study is careful and the sibling comparison is a strength. But it rests on just 35 suicides and has no data on hormones or surgery.
Key findings
- Çalışma, bir psikiyatrist tarafından en az iki kez cinsiyet kimliği bozukluğu tanısı konan 3.906 kişiyi (ortalama yaş yaklaşık 25; %71'i yasal olarak erkek) ve eşleştirilmiş 15.624 kişiyi ortalama yaklaşık 9,5 yıl izledi.
- Ruhsal hastalık trans grubunda çok daha yaygındı: depresyon %41'e karşı %6, anksiyete %29'a karşı %6, bipolar bozukluk %7'ye karşı %1 ve psikoz %7'ye karşı %1.
- Halkla karşılaştırıldığında, trans kişilerin herhangi bir nedenden ölme olasılığı %40, intihar ya da kazalar gibi dış nedenlerden ölme olasılığı yaklaşık iki kat ve intiharla ölme olasılığı yaklaşık 4 kat daha yüksekti (dört kat daha büyük bir grupta 31'e karşı 35 ölüm).
- Kazalardan ve hastalıklardan ölümler karşılaştırma grubundan daha yüksek değildi.
- Trans olmayan 4.765 kardeşle karşılaştırıldığında, genel ölümler ve dış nedenlerden ölümler daha yüksek değildi, ancak intihar hâlâ yaklaşık 2,6 kat daha yüksekti.
- Fazladan intihar riski, yasal cinsiyeti kadın olanlarda (yaklaşık 6 kat) ve ergenlerde (yaklaşık 13 kat, ancak çok az ölüme dayanıyor, bu yüzden bu rakam çok belirsizdir) en büyüktü.
- Depresyonu hesaba katmak intihar bağlantısını en çok küçülten şey oldu. Depresyonu olan kişiler arasında intihardaki fark kolayca tesadüf olabilirdi.
Abstract
BACKGROUND: Transgender persons have been reported to experience excess mortality, but evidence is dominated by Western cohorts and seldom addresses familial confounding. METHODS: We conducted a nationwide, retrospective cohort study using two prespecified comparison designs: matched population controls (1:4, matched on legal sex and birth date) and within-family cisgender sibling comparisons. Transgender persons were identified by ≥2 psychiatrist-recorded gender identity disorder diagnoses during 2001-2021; cohort entry required age ≥6 years. Participants were followed until death or December 31, 2022. We compared all-cause, external-cause (suicide and accidents), and internal-cause mortality using Cox regression adjusted for sociodemographics and medical comorbidity. FINDINGS: Among 3906 transgender persons (mean age 24.6 years; 70.6% with a male legal sex) and 15,624 controls (mean follow-up 9.5 years), psychiatric conditions were markedly over-represented in the transgender cohort (e.g., depressive disorders 40.8% vs 5.7%). Adjusted hazard ratios were 1.40 (95% confidence interval 1.06-1.84) for all-cause mortality, 2.03 (1.39-2.96) for external causes, and 4.07 (2.52-6.59) for suicides; accidents (0.56, 0.21-1.45) and internal-cause (0.98, 0.65-1.48) mortality did not differ. In sibling comparisons (4765 siblings), excess all-cause and external-cause mortality were not observed (0.96, 0.67-1.36; and 1.14, 0.70-1.85), suicide risk was higher (2.57, 1.32-5.00), and accident mortality lower (0.19, 0.06-0.67). Relative hazards were greatest in those with a female legal sex and in adolescents. Adjustment for psychiatric clusters attenuated-but did not eliminate-the suicide mortality excess. INTERPRETATION: In Taiwan, transgender persons had higher all-cause and suicide mortality than population controls; in within-family comparisons, the suicide mortality excess persisted, indicating influences beyond shared familial factors. Prevention should prioritize targeted mental-health and safety interventions, with particular attention to adolescents and those with a female legal sex. FUNDING: Taiwan National Science and Technology Council.
Conclusion
In Taiwan, transgender persons had higher all-cause and suicide mortality than population controls; in within-family comparisons, the suicide mortality excess persisted, indicating influences beyond shared familial factors. Adjustment for psychiatric clusters attenuated, but did not eliminate, the suicide excess, with depressive disorders producing the greatest attenuation. Prevention should prioritise targeted mental-health and safety interventions, with particular attention to adolescents and those with a female legal sex, including structured suicide-risk assessment at key points of care.