Among those who died by suicide, the specific methods used differed between the OCD and the control cohorts (Table 3). Although self-poisoning was the most common method of suicide in both groups, it was significantly more frequent in the OCD cohort (OR=4.00 (95% CI, 1.13–4.17)), while self-injury methods were more frequent in the control cohort (OR=0.25 (95% CI, 0.07–0.89)). Similarly, the most common method among those attempting suicide in both groups was also self-poisoning which, again, was significantly more frequent in the OCD cohort (OR=2.33 (95% CI, 1.90–2.87)).
