期刊
ALZHEIMERS & DEMENTIA
卷 19, 期 1, 页码 56-66出版社
WILEY
DOI: 10.1002/alz.12629
关键词
mild cognitive impairment; population-based study; prevalence; rural; subtype
This study found that the overall prevalence of mild cognitive impairment (MCI) in rural older adults in China was 26.48%, with 22.30% having amnestic MCI (aMCI) and 4.18% having non-amnestic MCI (naMCI). The prevalence of MCI increased with age and was associated with demographic factors, non-alcohol consumption, stroke history, and genetic factors.
Background Epidemiological studies of mild cognitive impairment (MCI) and subtypes of MCI have rarely focused on rural residents in China. Methods This population-based study included 5068 participants (age >= 60 years) who were living in rural communities. We defined MCI, amnestic MCI (aMCI), and non-amnestic MCI (naMCI) following the Petersen's criteria that integrated neuropsychological assessments with in-person clinical evaluations. Results The overall prevalence of MCI, aMCI, and naMCI was 26.48%, 22.30%, and 4.18%, respectively. The prevalence of MCI increased with age. The adjusted odds ratio (OR) of MCI was 0.71 (95% confidence interval [CI] 0.61 to 0.82) for primary school (vs. illiteracy), 0.30 (0.24 to 0.39) for middle school or above, 1.35 (1.09 to 1.67) for being farmers, 0.65 (0.54 to 0.78) for alcohol consumption, 1.43 (1.20 to 1.70) for stroke history, and 1.14 (0.95 to 1.36) for any apolipoprotein E (APOE) epsilon 4 allele (vs epsilon 3/epsilon 3). Conclusions MCI affects over one-fourth of rural older adults in China. Overall MCI was associated with demographic factors, non-alcohol consumption, and stroke, but not with APOE genotype and cardiometabolic factors.
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