Incident dementia in a defined older Chinese population.

Current knowledge about incident dementia is mainly derived from studies undertaken in the West, showing that dementia is related to older age, low socio-economic status, lack of social network, depression and cardiovascular disease risk factors. We know little about incidence and predictors of deme...

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Main Authors: Ruoling Chen, Zhi Hu, Li Wei, Ying Ma, Zhuming Liu, John R Copeland
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2011-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3179466?pdf=render
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author Ruoling Chen
Zhi Hu
Li Wei
Ying Ma
Zhuming Liu
John R Copeland
author_facet Ruoling Chen
Zhi Hu
Li Wei
Ying Ma
Zhuming Liu
John R Copeland
author_sort Ruoling Chen
collection DOAJ
description Current knowledge about incident dementia is mainly derived from studies undertaken in the West, showing that dementia is related to older age, low socio-economic status, lack of social network, depression and cardiovascular disease risk factors. We know little about incidence and predictors of dementia in China, where the prevalence is increasing and the patterns of risk factors are different.Using a standard interview method, we examined 1526 non-demented people aged ≥65 years who had at least minimal educational level in China in a 7.5-year follow up. Incident dementia was diagnosed by GMS-AGECAT algorithms and psychiatrists.Age-standardised incidence of dementia was 14.7 per 1000 person-years (95%CI 11.3-18.2 per 1000 person-years). The increased risk was significantly associated with age, female gender (adjusted odds ratio 2.48, 95%CI 1.20-5.13), low educational levels, smoking, angina (2.58, 1.01-6.59) and living with fewer family members. Among participants with low educational level, the increased risk was associated with higher income, and with the highest and lowest occupational classes; adjusted odds ratio 2.74 (95%CI 1.12-6.70) for officers/teachers, 3.11 (1.61-6.01) for manual labourers/peasants.Our findings of high incidence of dementia and increased risk among people having low education levels but high income suggest a more potential epidemic and burden of dementia populations in China. Maintaining social network and activities and reducing cardiovascular factors in late life could be integrated into current multi-faceted preventive strategies for curbing the epidemic of dementia.
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spelling doaj.art-8325df44a7e84b6b9a462dbc609a70b82022-12-21T20:13:29ZengPublic Library of Science (PLoS)PLoS ONE1932-62032011-01-0169e2481710.1371/journal.pone.0024817Incident dementia in a defined older Chinese population.Ruoling ChenZhi HuLi WeiYing MaZhuming LiuJohn R CopelandCurrent knowledge about incident dementia is mainly derived from studies undertaken in the West, showing that dementia is related to older age, low socio-economic status, lack of social network, depression and cardiovascular disease risk factors. We know little about incidence and predictors of dementia in China, where the prevalence is increasing and the patterns of risk factors are different.Using a standard interview method, we examined 1526 non-demented people aged ≥65 years who had at least minimal educational level in China in a 7.5-year follow up. Incident dementia was diagnosed by GMS-AGECAT algorithms and psychiatrists.Age-standardised incidence of dementia was 14.7 per 1000 person-years (95%CI 11.3-18.2 per 1000 person-years). The increased risk was significantly associated with age, female gender (adjusted odds ratio 2.48, 95%CI 1.20-5.13), low educational levels, smoking, angina (2.58, 1.01-6.59) and living with fewer family members. Among participants with low educational level, the increased risk was associated with higher income, and with the highest and lowest occupational classes; adjusted odds ratio 2.74 (95%CI 1.12-6.70) for officers/teachers, 3.11 (1.61-6.01) for manual labourers/peasants.Our findings of high incidence of dementia and increased risk among people having low education levels but high income suggest a more potential epidemic and burden of dementia populations in China. Maintaining social network and activities and reducing cardiovascular factors in late life could be integrated into current multi-faceted preventive strategies for curbing the epidemic of dementia.http://europepmc.org/articles/PMC3179466?pdf=render
spellingShingle Ruoling Chen
Zhi Hu
Li Wei
Ying Ma
Zhuming Liu
John R Copeland
Incident dementia in a defined older Chinese population.
PLoS ONE
title Incident dementia in a defined older Chinese population.
title_full Incident dementia in a defined older Chinese population.
title_fullStr Incident dementia in a defined older Chinese population.
title_full_unstemmed Incident dementia in a defined older Chinese population.
title_short Incident dementia in a defined older Chinese population.
title_sort incident dementia in a defined older chinese population
url http://europepmc.org/articles/PMC3179466?pdf=render
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