A nationwide survey of mild cognitive impairment and dementia, including very mild dementia, in Taiwan
Journal
PLoS ONE
Journal Volume
9
Journal Issue
6
Pages
e100303
Date Issued
2014
Author(s)
Abstract
An increasing population of dementia patients produces substantial societal impacts. We assessed the prevalence of mild cognitive impairment (MCI) and all-cause dementia, including very mild dementia (VMD), in Taiwan. In a nationwide population-based cross-sectional survey, participants were selected by computerized random sampling from all 19 Taiwan counties and were enrolled between December 2011 and March 2013. Cases were identified through in-person interviews based on the National Institute on Aging-Alzheimer's Association clinical criteria. Demographic data and histories involving mental status and function in daily living were collected. The principal objective assessments were the Taiwanese Mental Status Examination and Clinical Dementia Rating. In all, 10,432 people aged 65 years or older (mean age 76.2±6.7, 52.3% women) were interviewed. The age-adjusted prevalence of all-cause dementia was 8.04% (95% CI 7.47-8.61), including a 3.25% (95% CI 2.89-3.61) prevalence of VMD; that of MCI was 18.76% (95% CI 17.91-19.61). Women had a higher prevalence than men of both all-cause dementia (9.71% vs. 6.36%) and MCI (21.63% vs. 15.57%). MCI affects a considerable portion of the population aged 65 and above in Taiwan. The inclusion of VMD yields dementia prevalence rates higher than those previously reported from Taiwan. Old age, female gender, and a low educational level are significant associated factors. ? 2014 Sun et al.
SDGs
Other Subjects
age distribution; aged; article; Clinical Dementia Rating; cross-sectional study; dementia; disease association; disease classification; educational status; female; health survey; human; male; mild cognitive impairment; population research; prevalence; psychologic test; random sample; risk factor; sex difference; Taiwan; Taiwanese Mental Status Examination; very mild dementia; age; Alzheimer disease; daily life activity; dementia; mental health; mild cognitive impairment; pathophysiology; severity of illness index; very elderly; Activities of Daily Living; Age Factors; Aged; Aged, 80 and over; Alzheimer Disease; Cross-Sectional Studies; Dementia; Educational Status; Female; Humans; Male; Mental Status Schedule; Mild Cognitive Impairment; Risk Factors; Severity of Illness Index; Sex Factors; Taiwan
Publisher
Public Library of Science
Type
journal article