title: Quantitative study on socioeconomic determinants of life expectancy in Beijing, China.
abstract: OBJECTIVE
  To explore the socioeconomic factors associated with life expectancy in Beijing, and to predict future trends.
  
  
  METHODS
  The linear stepwise regression model was used to construct the relationship between life expectancy and socioeconomic factors.
  
  
  RESULTS
  The model showed that there were four factors associated with life expectancy in Beijing. Floor space available per rural resident (P = 0.000) and GDP per capita (P = 0.022) correlated positively with life expectancy, while the rural population proportion (P = 0.010) and illiteracy rate (P = 0.001) correlated negatively with life expectancy.
  
  
  CONCLUSIONS
  There is a close relationship between life expectancy and socioeconomic factors. The constructed model can be used as a rapid tool to project life expectancy in Beijing. It is possible to improve life expectancy continuously with sustained development of socioeconomic conditions in Beijing, China.
authors.affiliation: Center for Health Economics Studies, Capital Medical University, Beijing, China. leihc@moh.gov.cn
authors.forename: Haichao
authors.initials: H
authors.lastname: Lei
authors.forename: Liqiu
authors.initials: L
authors.lastname: Li
authors.forename: Xiuying
authors.initials: X
authors.lastname: Liu
authors.forename: Ayan
authors.initials: A
authors.lastname: Mao
mesh_terms: D000368:Aged; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D008017:Life Expectancy / Q000639:trends; D008297:Male; D012959:Socioeconomic Factors