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Risk for Dementia Reduced in Association With Antihypertensive Use

(HealthDay News) — Antihypertensive use is associated with a reduced risk for dementia compared with untreated hypertension, according to research published online in JAMA Network Open.

Matthew J. Lennon, MD., from the University of New South Wales in Sydney, and colleagues examined the associations of hypertension history, antihypertension use, and baseline-measured blood pressure (BP) in late life with dementia in longitudinal, population-based studies of aging adults participating in the Cohort Studies of Memory in an International Consortium group. The analysis included 17 studies with 34,519 community-dwelling older adults (mean age, 72.5 years) and a mean follow-up of 4.3 years.

The researchers found that individuals with untreated hypertension had a significantly increased risk for dementia compared with healthy controls and with individuals with treated hypertension in the main, partially adjusted analysis including 14 studies (hazard ratios, 1.42 and 1.26, respectively). The risk for dementia was not increased significantly for those with treated hypertension versus healthy controls. There was no variation observed in the association of antihypertensive use or hypertension status with dementia according to baseline BP.

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“Antihypertensive use was associated with decreased dementia risk in late-life individuals with hypertension; thus, dementia risk reduction may be one of the multiple goals of antihypertensive treatment in late-life (eg, prevention of ischemic heart disease, chronic kidney disease),” the authors write.

Several authors disclosed ties to the biopharmaceutical industry.

Abstract/Full Text