Of the 110 persons with OCD who died during the follow-up period, 66 (60.0%) died of natural causes, and 44 (40.0%) of unnatural causes. Among persons with OCD, the MRRs were 1.88 (95% CI, 1.46–2.37) for natural causes and 2.64 (95% CI, 1.93–3.52) for unnatural causes of death compared with persons without OCD and were adjusted for sociodemographic variables (Table 2). Taking somatic comorbidities into account reduced the MRRs among persons with OCD to 1.68 (95% CI, 1.31–2.12) for natural causes and 2.61 (95% CI, 1.91–3.47) for unnatural causes of death compared with persons without OCD (Table 2). The MRRs for natural causes were only significantly elevated among men (1.69 [95% CI, 1.19–2.30]) compared with women (1.37 [95% CI, 0.94–1.93]). In contrast, the MRRs for unnatural causes of death were slightly higher among women (3.15 [95% CI, 1.87–4.94]) than men (2.23 [95% CI, 1.49–3.20]) (Table 2). The cause-specific MRRs were highest for suicides (3.02 [95% CI, 1.85–4.63]) and accidents (2.09 [95% CI, 1.31–3.13]) among persons with OCD.
