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
- Studi ini mengikuti 3.906 orang yang didiagnosis setidaknya dua kali oleh psikiater dengan gangguan identitas gender (usia rata-rata sekitar 25 tahun; 71% secara hukum laki-laki) dan 15.624 orang yang dicocokkan selama rata-rata sekitar 9,5 tahun.
- Penyakit jiwa jauh lebih umum pada kelompok trans: depresi 41% berbanding 6%, kecemasan 29% berbanding 6%, gangguan bipolar 7% berbanding 1%, dan psikosis 7% berbanding 1%.
- Dibandingkan dengan masyarakat umum, orang trans 40% lebih mungkin meninggal karena sebab apa pun, sekitar dua kali lebih mungkin meninggal karena sebab luar seperti bunuh diri atau kecelakaan, dan sekitar 4 kali lebih mungkin meninggal karena bunuh diri (35 kematian berbanding 31 pada kelompok yang empat kali lebih besar).
- Kematian akibat kecelakaan dan penyakit tidak lebih tinggi daripada pada kelompok pembanding.
- Dibandingkan dengan 4.765 saudara kandung non-trans, kematian secara keseluruhan dan kematian akibat sebab luar tidak lebih tinggi, tetapi bunuh diri masih sekitar 2,6 kali lebih tinggi.
- Risiko bunuh diri tambahan terbesar pada orang yang jenis kelamin hukumnya perempuan (sekitar 6 kali) dan pada remaja (sekitar 13 kali, tetapi berdasarkan sangat sedikit kematian, sehingga angka ini sangat tidak pasti).
- Memperhitungkan depresi paling mengecilkan keterkaitan dengan bunuh diri. Di antara orang dengan depresi, perbedaan bunuh diri mudah saja kebetulan.
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.