期刊
AGEING RESEARCH REVIEWS
卷 35, 期 -, 页码 176-199出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.arr.2016.09.005
关键词
Mild cognitive impairment; Alzheimer's disease; Sex differences; Meta-analysis; Epidemiology
资金
- Department of Family and Community Medicine, Sunny-brook Health Sciences Centre
- University of Toronto
- Primary Care Research Unit, Department of Family and Community Medicine, Sunnybrook Health Sciences Centre, Toronto, Canada
Objective: More women have Alzheimer's disease (AD) than men. Understanding sex differences in mild cognitive impairment (MCI) may further knowledge of AD etiology and prevention. We conducted a meta analysis to examine sex differences in the prevalence and incidence of MCI, which included amnestic and non-amnestic subtypes. Method: Systematic searches were performed in July 2015 using MEDLINE/PubMed, Scopus, and PsycINFO for population-or community-based studies with MCI data for men and women. Random-effects model were used. Results: Fifty-six studies were included. There were no statistically significant sex differences in prevalence or incidence of amnestic MCI. There was a significantly higher prevalence (p = 0.038), but not incidence, of non-amnestic MCI among women. There were no sex differences in studies that combined both subtypes of MCI. Conclusion: The only statistically significant finding emerging from this study was that women have a higher prevalence of non-amnestic MCI. To better understand sex differences in the preclinical stages of dementia, studies must better characterize the etiology of the cognitive impairment. (C) 2016 Elsevier B.V. All rights reserved.
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