Sample characteristics (%, n)
| All n=18 726 | Cases n=2083 | Controls n=16 643 | P value Cases versus controls (where appropriate) | |
| Registered males | 49.0 (9185) | 41.3 (860) | 50.0 (8325) | <0.001 |
| Death during follow-up | 0.3 (55) | 0.5 (11) | 0.3 (44) | 0.05 |
| Suicide | 0.1 (20) | 0.3 (7) | 0.1 (13) | 0.004 |
| Number of contacts to specialist-level psychiatric care | <0.001 | |||
| None | 69.0 (12 928) | 28.6 (595) | 74.1 (12 333) | |
| 1–5 | 8.2 (1537) | 9.6 (200) | 8.0 (1337) | |
| 6–25 | 8.1 (1518) | 15.2 (317) | 7.2 (1201) | |
| 26–100 | 8.0 (1490) | 20.5 (426) | 6.4 (1064) | |
| 101+ | 6.7 (1253) | 26.2 (545) | 4.3 (708) | |
| Hormonal or surgical gender reassignment interventions* | 4.3 (814)* | 38.2 (796) | 0.1 (18)* |
p-values statistically significant at level <0.01 are highlighted in bold.
*Controls may have obtained corresponding hormonal treatments (androgen, oestrogen, antiandrogen) or mastectomy because of any other relevant condition not counted as gender reassignment.