Added burden of major depressive disorder on cardiovascular morbidity and mortality among patients with cardiovascular disease and the modifying effects of antidepressants: A national retrospective cohort study.
2021
Abstract Background : To evaluate the likelihood of a future cardiovascular event (i.e., in-hospital mortality or cardiovascular disease [CVD] complications/interventions) among patients with CVD and major depressive disorder (MDD) compared to those without MDD, and the antidepressant use on future cardiovascular events between the two groups. Methods This is a retrospective cohort with propensity score matching with 8941 patients with CVD and MDD, and 8941 non-MDD patients using data from the Longitudinal Health Insurance Database from 1999 to 2013 in Taiwan. The outcome was in-hospital mortality and the incidence of revascularization (i.e., percutaneous transluminal coronary angioplasty [PTCA] and coronary artery bypass graft surgery [CABG]). Results : Patients with CVD and MDD were more likely to need revascularization (an adjusted hazard ratio [aHR]: 1.26 and 95% CI: 1.12-1.43) than those without MDD, regardless of whether PTCA (aHR: 1.23 and 95% CI: 1.07-1.40) or CABG (aHR: 1.60 and 95% CI: 1.16-2.21) had occurred. Antidepressant use was associated with a tendency of reduced risk of mortality (aHR: 0.92 and 95% CI: 0.84-1.00). Although the magnitude of aHR ranged from 0.92 to 0.95 with revascularization, they did not reach significant levels. Limitations Some covariates could not be controlled because they were not included in the national register dataset, and the causality is limited in an observational study. Conclusions Patients with CVD with MDD are more likely to experience a cardiovascular complication requiring intervention than CVD patients without MDD. Antidepressant use is associated with reduced in-hospital mortality.
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