Prevalence of Mild Cognitive Impairment by Multiple Classifications: The Monongahela-Youghiogheny Healthy Aging Team (MYHAT) Project
Prevalence of Mild Cognitive Impairment by Multiple Classifications: The Monongahela-Youghiogheny Healthy Aging Team (MYHAT) Project
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DOI:
10.1097/jgp.0b013e3181cdee4f
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发表时间:
2010-08-01
影响因子:
7.2
通讯作者:
Lee, Ching-Wen
中科院分区:
文献类型:
--
作者:
Ganguli, Mary;Chang, Chung-Chou H.;Lee, Ching-Wen
Objectives: To estimate and compare the frequency and prevalence of mild cognitive impairment (MCI) and related entities using different classification approaches at the population level. Design: Cross-sectional epidemiologic study of population-based cohort recruited by age-stratified random sampling from electoral rolls. Setting: Small-town communities in western Pennsylvania. Participants: Of 2,036 individuals aged 65 years and older, 1,982 participants with normal or mildly impaired cognition (age-education-corrected Mini-Mental State scores >= 21). Measurements: Demographics, neuropsychological assessment expressed as cognitive domains, functional ability, and subjective reports of cognitive difficulties; based on these measurements, operational criteria for the Clinical Dementia Rating (CDR) scale, the 1999 criteria for amnestic MCI, the 2004 Expanded criteria for MCI, and new, purely cognitive criteria for MCI. Results: A CDR rating of 0.5 (uncertain/very mild dementia) was obtained by 27.6% of participants, whereas 1.2% had CDR >= 1 ( mild or moderate dementia). Among those with CDR