Gerontology & Geriatric Research

INCIDENCE OF DEMENTIA AND SUBTYPES: A COHORT STUDY IN FOUR REGIONS IN CHINA

4^th International Conference on Geriatrics & Gerontological Nursing

October 3-4, 2016 | London, UK

Jing Yuan

Peking Union Medical College Hospital, China

Posters & Accepted Abstracts: J Gerontol Geriat Res

Abstract:

Background: There is a dearth of literature on the incidence of dementia in China. Methods: Using a stratified, multistage, cluster-sampling method, 16,921 nondemented participants �?�55 years were recruited from four regional centers in China in 1997 and followed up to 4.5 years. Cases were identified through a three-step protocol, according to standardized criteria for dementia, Alzheimer�??s dementia (AD), and vascular dementia (VaD). Results: The crude incidence in persons �?�65 years was 12.1/1000 person-years of dementia, 8.2/1000 person-years for AD, and 3.1/1000 person-years for VaD. After adjusting for sociodemographic factors, older age and lower education were associated with a higher risk of incident dementia, AD and VaD; regional difference was associated mainly with an incidence of VaD (north vs. south: hazard ratio [HR] = 3.59); modestly with AD (east vs. west: HR = 1.55). Conclusions: The incidence of dementia in Chinese population is comparable with that in Europe and United States.