title: [Evaluation on the disability weight of Alzheimer's disease and Parkinson's disease in Beijing].
abstract: OBJECTIVE
  To formulate the classification criteria of disability weight for Alzheimer's disease (AD) and Parkinson's disease (PD) in China and to evaluate the disability weight of AD and PD in population over 60 years old in Beijing.
  
  
  METHODS
  Based on the criteria of Global Burden of Disease (GBD), a seven-grade disability classification was used to develop a new disability classification criteria for AD and PD in terms of Delphi method in China. Using the data from epidemiological survey for AD and PD in Beijing in 1997 and new criteria, mean disability weights of AD and PD in population over 60 years old in Beijing were obtained.
  
  
  RESULTS
  The mean disability weights of Alzheimer's disease was 0.40 in population over 60 years old who received treatment in Beijing and 0.52 in those without treatment while the mean disability weights of Parkinson's disease were 0.30 in the patient receiving treatment and 0.23 in those without treatment.
  
  
  CONCLUSIONS
  Difference between the result of this study and the data of GBD study in the mean disability weight for AD and PD was noticed.
authors.affiliation: Department of Epidemiology, Chinese Academy of Meedical Sciences and Peking Union Medical College, Beijing 100005, China.
authors.forename: Lei-lei
authors.initials: LL
authors.lastname: Duan
authors.forename: Zhen-xin
authors.initials: ZX
authors.lastname: Zhang
authors.forename: Jue-bin
authors.initials: JB
authors.lastname: Huang
authors.forename: Xia
authors.initials: X
authors.lastname: Hong
authors.forename: Hong-bo
authors.initials: HB
authors.lastname: Wen
authors.forename: Qing-hua
authors.initials: QH
authors.lastname: Wang
authors.forename: Hui
authors.initials: H
authors.lastname: Li
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000544:Alzheimer Disease / Q000453:epidemiology*; D002681:China / Q000453:epidemiology; D003072:Cognition Disorders / Q000175:diagnosis / Q000209:etiology; D017281:Cost of Illness; D004185:Disability Evaluation; D006233:Persons with Disabilities; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000453:epidemiology*; D021641:Recognition, Psychology