Psychological distress is independently related to new coronary events at 8 years' follow-up in elderly primary care patients with hypertension

OBJECTIVE: Occurrence of psychological distress in hypertensive patients could have a negative synergistic effect on future cardiovascular events (CVEs). The aim of this study was to determine the association between anxiety or depressive symptoms in elderly hypertensive primary care patients and the development of new CVEs and all-cause mortality. METHODS: A prospective cohort study was conducted in five Dutch general practices between June 2010 and January 2012. Patients with primary care managed hypertension, aged 60-85 years, were included and completed the GAD-7 and PHQ-9, measuring anxiety and depressive symptoms respectively. The incidence of new CVEs (coronary event, cerebrovascular disease, atrial fibrillation and heart failure) and all-cause mortality at 8 years' follow-up was recorded by data extraction of the digital information systems. RESULTS: Among the 555 included participants (mean age 70 ± 6.6 years; 56% female), 29 (5.2%) had a new coronary event, 42 (7.6%) a cerebrovascular disease, 57 (10.3%) atrial fibrillation, 22 (4%) heart failure and 68 (12.3%) died. Elevated anxiety and depression scores increased the risk of a coronary event independently and significantly by 12% (HR 1.12; 95% CI [1.04-1.22], p = 0.005) and 18% (HR 1.18; 95% CI [1.08-1.28], p < 0.0001), respectively, adjusted for relevant (Framingham) baseline covariates. No associations were found with regard to other CVEs and all-cause mortality. CONCLUSION: In a random sample of elderly primary care hypertension patients there was a significant association between psychological distress and the occurrence of new coronary events after 8 years' follow-up but not with other CVEs and all-cause mortality.