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Antihypertensive Medication Regimen Intensity and Incident Dementia in an Older Population
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI). Monash University, Australia.ORCID iD: 0000-0003-2922-8837
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI). Karolinska Institutet, Sweden.
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI).
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Number of Authors: 82018 (English)In: Journal of the American Medical Directors Association, ISSN 1525-8610, E-ISSN 1538-9375, Vol. 19, no 7, p. 577-583Article in journal (Refereed) Published
Abstract [en]

Objective: To investigate the association between antihypertensive medication regimen intensity and risk of incident dementia in an older population. Design: Prospective, longitudinal cohort study. Participants/Setting: A total of 1208 participants aged >= 78 years, free of dementia, and residing in central Stockholm at baseline (2001-2004). Measurements: Participants were examined at 3- and 6-year follow-up to detect incident dementia. Data were collected through face-to-face interviews, clinical examinations, and laboratory tests. Data on antihypertensive use were obtained by a physician through patient self-report, visual inspection, or medical records. Cox proportional hazards models were used to compute hazard ratios (HRs) and 95% confidence intervals (CIs) for the association between time-varying antihypertensive regimen intensity and incident dementia after adjusting for potential confounders. Results: During the follow-up period, 125 participants were diagnosed with dementia. Participants who developed dementia were more likely to have vascular disease at baseline (66.4% vs 55.3%, P=.02). In fully adjusted analyses, the number of antihypertensive classes (HR 0.68, 95% CI 0.55-0.84) and total prescribed daily dose (HR 0.70, 95% CI 0.57-0.86) were significantly associated with reduced dementia risk. After considering all-cause mortality as a competing risk, the number (HR 0.75, 95% CI 0.62-0.91) and doses (HR 0.71, 95% CI 0.59-0.86) of antihypertensive classes, and the independent use of diuretics (HR 0.66, 95% CI 0.44-0.99), were significantly associated with lower dementia risk. Conclusions: Greater intensity of antihypertensive drug use among older people may be associated with reduced incidence of dementia.

Place, publisher, year, edition, pages
2018. Vol. 19, no 7, p. 577-583
Keywords [en]
Antihypertensive agents, dementia, cardiovascular diseases, longitudinal studies, prospective studies
National Category
Geriatrics Gerontology, specialising in Medical and Health Sciences
Identifiers
URN: urn:nbn:se:su:diva-158931DOI: 10.1016/j.jamda.2017.11.017ISI: 000438461500005PubMedID: 29306604OAI: oai:DiVA.org:su-158931DiVA, id: diva2:1240403
Available from: 2018-08-21 Created: 2018-08-21 Last updated: 2018-08-21Bibliographically approved

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