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Association of depression with mortality in an elderly treated hypertensive population


Chowdhury, EK and Berk, M and Nelson, MR and Wing, LMH and Reid, CM, Association of depression with mortality in an elderly treated hypertensive population, International Psychogeriatrics, 31, (3) pp. 371-381. ISSN 1041-6102 (2019) [Refereed Article]

Copyright Statement

Copyright 2018 International Psychogeriatric Association

DOI: doi:10.1017/S1041610218000856


Background: Both elevated blood pressure and/or depression increase the risk of cardiovascular disease and mortality. This study in treated elderly hypertensive patients explored the incidence of depression, its association (pre-existing and incident) with mortality and predictors of incident depression.

Methods: Data from 6,083 hypertensive patients aged ≥65 years enrolled in the Second Australian National Blood Pressure study were used. Participants were followed for a median of 10.8 years (including 4.1 years in-trial) and classified into: "no depression," "pre-existing" and "incident" depression groups based on either being "diagnosed with depressive disorders" and/or "treated with an anti-depressant drug" at baseline or during in-trial period. Further, we redefined "depression" restricted to presence of both conditions for sensitivity analyses. For the current study, end-points were all-cause and any cardiovascular mortality.

Results: 313 (5%) participants had pre-existing depression and a further 916 (15%) participants developed depression during the trial period (incidence 4% per annum). Increased (hazard-ratio, 95% confidence-interval) all-cause mortality was observed among those with either pre-existing (1.23, 1.01-1.50; p = 0.03) or incident (1.26, 1.12-1.41; p < 0.001) depression compared to those without. For cardiovascular mortality, a 24% increased risk (1.24, 1.05-1.47; p = 0.01) was observed among those with incident depression. The sensitivity analyses, using the restricted depression definition showed similar associations. Incident depression was associated with being female, aged ≥75 years, being an active smoker at study entry, and developing new diabetes during the study period.

Conclusions: This elderly cohort had a high incidence of depression irrespective of their randomised antihypertensive regimen. Both pre-existing and incident depression were associated with increased mortality.

Item Details

Item Type:Refereed Article
Keywords:angiotensin converting enzyme inhibitors, depression, diuretics, elderly, hypertension, survival
Research Division:Biomedical and Clinical Sciences
Research Group:Cardiovascular medicine and haematology
Research Field:Cardiology (incl. cardiovascular diseases)
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:Nelson, MR (Professor Mark Nelson)
ID Code:128173
Year Published:2019 (online first 2018)
Web of Science® Times Cited:2
Deposited By:Menzies Institute for Medical Research
Deposited On:2018-09-06
Last Modified:2020-06-22

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