Veterans at high risk for post-COVID-19 suicide attempts or other self-directed violence

Abstract: Importance: US veterans have a higher risk of suicide than the general civilian population. Research suggests that COVID-19 infection is associated with increased risk of suicide attempts or other forms of self-directed violence (SDV) among veterans. Objective: To identify subgroups of veterans with high risk of post-COVID-19 suicide attempts or SDV. Design, setting and participants: This is a retrospective cohort study conducted using data from the Veteran Health Administration (VHA). Participants included VHA enrollees with a first case of COVID-19 between May 1, 2021, and April 30, 2022, residing in the 50 states or Washington, DC. Exposure: COVID-19 infection. Main outcomes and measures: The main outcome was a suicide attempt or SDV 12 months after COVID-19 infection. Latent class analysis was used to identify subgroups. Outcome rates and 95% CIs per 10 000 veterans were calculated. Multinomial regressions were used to model outcome risk and marginal risk ratios with 99.5% CIs to compare outcome risk across latent classes. Results: The cohort included 285 235 veterans with COVID-19 and was predominantly male (248 118 veterans [87.0%]) and younger than 65 years (171 636 veterans [60.2%]). Chronic pain (152 788 veterans [53.6%]), depression (98 093 veterans [34.4%]), and posttraumatic stress disorder (79 462 veterans [27.9%]) diagnoses were common. The 12-month outcome rate was 73.8 events per 10 000 (95% CI, 70.7-77.0 events per 10 000). Two latent classes with high rates of suicide attempt or SDV were identified. The first high-risk subgroup (46 693 veterans [16.4%]) was older (34 472 veterans [73.8%] aged ≥65 years) and had a high prevalence of physical conditions (43 329 veterans [92.8%] had hypertension, and 36 824 veterans [78.9%] had chronic pain); the 12-month outcome rate was 103.7 events per 10 000 (95% CI, 94.7-113.3 events per 10 000). The second high-risk subgroup (82 309 veterans [28.9%]) was generally younger (68 822 veterans [83.6%] aged <65 years) with a lower prevalence of physical conditions but high prevalence of mental health conditions (61 367 veterans [74.6%] had depression, and 50 073 veterans [60.8%] had posttraumatic stress disorder); the 12-month outcome rate was 162.9 events per 10 000 (95% CI, 154.5-171.8 events per 10 000), and compared with the lowest risk subgroup, the 12-month risk of suicide attempts or SDV was 14 times higher in this subgroup (risk ratio, 14.23; 99.5% CI, 10.22-19.80). Conclusions and relevance: In this cohort study of veterans with COVID-19, 2 veteran subgroups with distinct health profiles had high rates of suicide attempts and SDV, suggesting that different groups may require different approaches to suicide prevention after COVID-19.

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