Prevalence studies of dementia in mainland china, Hong Kong and taiwan: a systematic review and meta-analysis.

ABSTRACT:

Background

Many studies have considered the prevalence of dementia in mainland China, Hong Kong and Taiwan. However, area level estimates have not been produced. This study examines area differences across mainland China, Hong Kong and Taiwan adjusting for the effect of methodological factors with the aim of producing estimates of the numbers of people with dementia in these areas.

Method and findings

A search of Chinese and English databases identified 76 dementia prevalence studies based on samples drawn from mainland China, Hong Kong and Taiwan between 1980 and 2012. A pattern of significantly decreasing prevalence was observed from northern, central, southern areas of mainland China, Hong Kong and Taiwan. Area variations in dementia prevalence were not explained by diffe

SUBMITTER: Wu YT 

PROVIDER: S-EPMC3679068 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature