title: [Time-series analysis on the association between gaseous air pollutants and daily mortality in urban residents in Tianjin].
abstract: OBJECTIVE
  To study the association between sulphur dioxide, nitrogen dioxide and daily mortality in urban population from Tianjin.
  
  
  METHODS
  Data on daily concentration of inhalable particulate matter, sulphur dioxide and nitrogen dioxide, daily mean temperature and relative humidity, daily cause-specific death counts were collected. Generalized additive models was used to explore the relationship between sulphur dioxide, nitrogen dioxide and daily mortality, after adjusting the effects of long-term and seasonal trend, weather conditions, and to analyze the potential effect of particulate matter and model parameters on relative risk estimates.
  
  
  RESULTS
  Results showed that the daily concentrations of SO(2) and NO(2) were significantly associated with daily non-accidental and cardiovascular mortality but not associated with daily respiratory mortality. An increase of 10 µg/m(3) in SO(2) was associated with 0.56% (95%CI: 0.23% - 0.89%) non-accidental morality, 0.49% (0.06% - 0.93%) cardiovascular morality, respectively. An increase of 10 µg/m(3) in NO(2) was associated with 0.94% (95%CI: 0.17% - 1.70%) non-accidental morality, 1.29% (0.29% - 2.30%) cardiovascular morality, respectively.
  
  
  CONCLUSIONS
  Our findings suggested that exposure to SO(2) and NO(2) was significantly associated with daily cardiovascular and respiratory mortality in urban population in Tianjin.
authors.affiliation: Department of Environmental Pollution and Health, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
authors.forename: Yan-shen
authors.initials: YS
authors.lastname: Zhang
authors.forename: Mai-geng
authors.initials: MG
authors.lastname: Zhou
authors.forename: Yu-ping
authors.initials: YP
authors.lastname: Jia
authors.forename: Yi-song
authors.initials: YS
authors.lastname: Hu
authors.forename: Jin-liang
authors.initials: JL
authors.lastname: Zhang
authors.forename: Guo-hong
authors.initials: GH
authors.lastname: Jiang
authors.forename: Xiao-chuan
authors.initials: XC
authors.lastname: Pan
mesh_terms: D000393:Air Pollutants / Q000032:analysis; D000397:Air Pollution / Q000032:analysis*; D002681:China / Q000453:epidemiology; D004781:Environmental Exposure / Q000032:analysis*; D006801:Humans; D009026:Mortality; D009585:Nitrogen Dioxide / Q000032:analysis; D052638:Particulate Matter / Q000032:analysis; D012306:Risk; D013458:Sulfur Dioxide / Q000032:analysis; D013997:Time Factors; D014887:Weather
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter; D013458:Sulfur Dioxide; D009585:Nitrogen Dioxide