期刊
DEPRESSION AND ANXIETY
卷 34, 期 3, 页码 217-226出版社
WILEY
DOI: 10.1002/da.22584
关键词
antidepressants; cognition; depression; geriatric; aging; elderly; pharmacoepidemiology
资金
- Alzheimer Society of Saskatchewan
- Saskatchewan Health Research Foundation
ObjectiveTo determine if antidepressant drug usage is associated with cognitive impairment or dementia, including Alzheimer disease (AD). MethodWe conducted a systematic search of Medline, PubMed, PsycINFO, Web of Science, Embase, CINAHL, and the Cochrane Library. An initial screen by abstracts and titles was performed, and relevant full articles were then reviewed and assessed for their methodologic quality. Crude effect estimates were extracted from the included articles and a pooled estimate was obtained using a random effects model. ResultsFive articles were selected from an initial pool of 4,123 articles. Use of antidepressant drugs was associated with a significant twofold increase in the odds of some form of cognitive impairment or dementia (OR = 2.17). Age was identified as a likely modifier of the association between antidepressant use and some form of cognitive impairment or AD/dementia. Studies that included participants with an average age equal to or greater than 65 years showed an increased odds of some form of cognitive impairment with antidepressant drug usage (OR = 1.65), whereas those with participants less than age 65 revealed an even stronger association (OR = 3.25). ConclusionsAntidepressant drug usage is associated with AD/dementia and this is particularly evident if usage begins before age 65. This association may arise due to confounding by depression or depression severity. However, biological mechanisms potentially linking antidepressant exposure to dementia have been described, so an etiological effect of antidepressants is possible. With this confirmation that an association exists, clarification of underlying etiologic pathways requires urgent attention.
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