title: [Factors influencing intelligence in elderly population in a community-based study in Taiyuan city].
abstract: OBJECTIVE
  To explore the factors which influencing the intelligence in elderly in a community, so as to provide reference on primary prevention of dementia.
  
  
  METHODS
  A door to door survey was conducted. A total number of 830 elderly were assessed using WAIS-RC, H-NTLA and data collected through questionnaires on lifestyles, family and social activity were analysed, using the factor analysis, stepwise regression and canonical correlation analysis.
  
  
  RESULTS
  The main variables related to the verbal were eggs diet, blood pressure, fruit, visit their children, alcohol intake (standard coefficients of regression are -0.118, -0.079, -0.060, -0.036, -0.117, respectively). The main variables related to cognition were recreation, sports and hereditary history of mental disorders (standard coefficients of regression were 0.035, -0.127, respectively). The main variables related to memory were contact to chemical materials, age of their parents during delivery, alcohol intake and the relationship between husband and wife (standard coefficients of regression were -0.063, 0.055, -0.030, -0.037, respectively). The variables related to canonical variable V(1) would include education and occupation (canonical correlation = 0.5993, P = 0.0001) while V(2) would include cerebrovascular accident (canonical correlation = 0.3925, P = 0.0005).
  
  
  CONCLUSIONS
  Intelligent work, family harmony, prevention of cerebrovascular diseases were the main areas to prevent intellectual disability in the elderly.
authors.affiliation: Department of Medicine, Hospital of Shanxi Caol-chamistry institude, The Chinese Academy of Sciences, Taiyuan 030001, China.
authors.forename: Mei-zhen
authors.initials: MZ
authors.lastname: Xue
authors.forename: Cheng-yi
authors.initials: CY
authors.lastname: Qu
authors.forename: Mao-hua
authors.initials: MH
authors.lastname: Miao
authors.forename: Li-hua
authors.initials: LH
authors.lastname: Wei
authors.forename: Yu-lin
authors.initials: YL
authors.lastname: Ma
authors.forename: Zuo-hua
authors.initials: ZH
authors.lastname: Yang
mesh_terms: D000368:Aged; D002681:China; D003153:Community Health Services / Q000706:statistics & numerical data; D003704:Dementia / Q000517:prevention & control*; D005163:Factor Analysis, Statistical; D005260:Female; D006299:Health Services for the Aged / Q000706:statistics & numerical data; D006801:Humans; D007360:Intelligence / Q000502:physiology*; D008019:Life Style; D008297:Male; D008875:Middle Aged; D011788:Quality of Life; D012044:Regression Analysis; D011795:Surveys and Questionnaires