Prevalence of dementia and main subtypes in rural northern China

Dementia and Geriatric Cognitive Disorders
Yong JiThomas Wisniewski

Abstract

The aim of this article was to estimate the prevalence of and to determine the sociodemographic risk factors for dementia, Alzheimer's disease (AD) and vascular dementia (VaD) among individuals residing in rural northern China. Between 2011 and 2012, residents aged ≥60 years and residing in rural areas of northern China were clinically assessed for symptoms of dementia, AD and VaD. Diagnoses were made using established criteria and standard procedures. Among 5,578 enrolled study participants aged ≥60 years, the prevalence rates of dementia, AD and VaD were 7.7, 5.4 and 1.7%, respectively. Older age (OR = 1.17; 95% CI: 1.14-1.19) and female gender (OR = 2.13; 95% CI: 1.51-3.00) were identified as independent risk factors for AD. In turn, a higher educational level (OR = 0.36; 95% CI: 0.21-0.60) and engagement in social activities (OR = 0.219; 95% CI: 0.163-0.295) were protective factors. Risk factors associated with VaD were older age (OR = 1.11; 95% CI: 1.1-1.12) and hypertension (OR = 1.83; 95% CI: 1.18-2.86), while a higher educational level (OR = 0.53, 95% CI: 0.44-0.65) and engagement in social activities (OR = 0.34; 95% CI: 0.29-0.41) were protective factors. High rates of dementia (7.7%) and AD (5.4%) were found in the ru...Continue Reading

Citations

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