Antihypertensive medication use and incident Alzheimer disease: the Cache County Study

Archives of Neurology
Ara S KhachaturianJohn C S Breitner

Abstract

Recent reports suggest that antihypertensive (AH) medications may reduce the risk of dementing illnesses. To examine the relationship of AH medication use with incidence of Alzheimer disease (AD) among the elderly population (aged 65 years and older) of Cache County, Utah, and to examine whether the relationship varies with different classes of AH medications. After an initial (wave 1) multistage assessment (1995 through 1997) to identify prevalent cases of dementia, we used similar methods 3 years later (wave 2) to identify 104 incident cases of AD among the 3308 survivors. At the baseline assessment, we obtained a detailed drug inventory from the study participants. We carried out discrete time survival analyses to examine the association between the use of AH medications (including angiotensin converting enzyme inhibitors, beta-blockers, calcium channel blockers, and diuretics) at baseline with subsequent risk of AD. Use of any AH medication at baseline was associated with lower incidence of AD (adjusted hazard ratio, 0.64; 95% confidence interval, 0.41-0.98). Examination of medication subclasses showed that use of diuretics (adjusted hazard ratio, 0.57; 95% confidence interval, 0.33-0.94), and specifically potassium-sparing...Continue Reading

Associated Clinical Trials

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