Parkinson's disease in China: prevalence in Beijing, Xian, and Shanghai.
A cross-sectional prevalence study of Parkinson's disease in China was undertaken in 1997-98. We assessed 29?454 residents aged > or =55 years from 79 rural and 58 urban communities in Beijing, Xian, and Shanghai, who were selected through stratified, multistage, cluster sampling. With a standardised diagnostic protocol, we identified 277 people with the disease. Prevalence of Parkinson's disease for those aged > or =65 years was 1.7% (95% CI 1.5-1.9). We estimate that 1.7 million people in China have the disease (aged > or =55 years). Our findings suggest that prevalence of Parkinson's disease in China is similar to that in developed countries.
Zhang
Zhen-Xin
ZX
Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China. zhangzx@pumch.ac.cn
Roman
Gustavo C
GC
Hong
Zhen
Z
Wu
Cheng-Bing
CB
Qu
Qiu-Ming
QM
Huang
Jue-Bing
JB
Zhou
Bing
B
Geng
Zhi-Ping
ZP
Wu
Ji-Xing
JX
Wen
Hong-Bo
HB
Zhao
Heng
H
Zahner
Gwendolyn E P
GE
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005060:Europe / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000209:etiology*; D015995:Prevalence