Change in depression as a precursor of cardiovascular events. SHEP Cooperative Research Group (Systoloc Hypertension in the elderly)
Abstract
To determine the relationship between increasing depressive symptoms and cardiovascular events or mortality. Cohort analytic study of data from randomized placebo-controlled double-blind clinical trial of antihypertensive therapy. Depressive symptoms were assessed semi-annually with the Center for Epidemiological Studies-Depression (CES-D) scale during an average follow-up of 4.5 years. Ambulatory patients in 16 clinical centers of the Systolic Hypertension in the Elderly Program. Generally healthy men and women aged 60 years or older randomized to active antihypertensive drug therapy or placebo who were 70% white and 53% women and had follow-up CES-D scores and no outcome events during the first 6 months (N=4367). All-cause mortality, fatal or nonfatal stroke, or myocardial infarction. Baseline depressive symptoms were not related to subsequent events; however, an increase in depression was prognostic. Cox proportional hazards regression analyses with the CES-D scale as a time-dependent variable, controlling for multiple covariates, indicated a 25% increased risk of death per 5-unit increase in the CES-D score (relative risk [RR], 1.25;95% confidence interval [CI], 1.15 to 1.36). The RR for stroke or myocardial infarction was ...Continue Reading
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