Gender differences in cognitive impairment among the old and the oldest‐old in China

Aim To examine gender differences in the prevalence of cognitive impairment across two age cohorts in China: the old (aged 65–79 years) and the oldest‐old (aged 80–116 years). Methods The Chinese Longitudinal Healthy Longevity Survey with waves from 2008 to 2011 was used (N = 13 586). Regression ana...

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Bibliographic Details
Published in:Geriatrics & gerontology international 2019-07, Vol.19 (7), p.586-592
Main Authors: Miyawaki, Christina E, Liu, Minhui
Format: Article
Language:English
Subjects:
Age Factors
Aged
Aged, 80 and over
China
China - epidemiology
Cognition
Cognitive ability
Cognitive Aging
Cognitive Dysfunction - diagnosis
Cognitive Dysfunction - epidemiology
Cognitive Dysfunction - physiopathology
Cognitive Dysfunction - psychology
cognitive impairment
Cohort Studies
Female
Gender differences
Geriatric Assessment - methods
Geriatric Assessment - statistics & numerical data
Health Status Disparities
Humans
Longitudinal Studies
Male
Prevalence
Risk Factors
Sex Factors
Social Class
Social networks
the old and oldest‐old
Women
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Summary:Aim To examine gender differences in the prevalence of cognitive impairment across two age cohorts in China: the old (aged 65–79 years) and the oldest‐old (aged 80–116 years). Methods The Chinese Longitudinal Healthy Longevity Survey with waves from 2008 to 2011 was used (N = 13 586). Regression analysis was used to model the gender effects on baseline cognitive function and onset of cognitive impairment. Independent variables included demographics, socioeconomic status (SES), social network, leisure activities and functional disabilities. Results Among the oldest‐old, women (32.9%) were twice as likely as men (15.7%) to have cognitive impairment. For the old, women (2.2%) were only slightly more likely than men (1.9%). Regression models showed the oldest‐old women having a significantly higher risk of cognitive impairment than men (P 
ISSN:1444-1586
1447-0594
DOI:10.1111/ggi.13666