摘要
目的定量评价西安大气PM2.5污染对城区居民每日疾病死亡率的影响。方法以大气PM2.5浓度为自变量,以总死亡,呼吸系统疾病,心血管疾病,中风,慢性阻塞型肺部疾病,冠心病,下呼吸道感染等疾病为因变量,进行了单因素泊松回归分析。结果单变量分析结果表明:除PM2.5对下呼吸道感染死亡率的影响无显著意义以外,与其它各种疾病死亡率之间的正相关关系均有显著意义。暴露-反应关系模型显示:PM2.5浓度每升高100μg/m3,总死亡、呼吸系统疾病、心血管疾病、冠心病、中风、COPD的死亡率分别增加4.08%,8.32%,6.18%,8.32%,5.13%,7.25%。结论大气PM2.5浓度的升高会引起相应疾病死亡率的增加。
Objective To conduct quantitative assessment on the impact of PM2.5 pollution in air on daily disease mortality of residents in urban area in Xi＇an.Methods Poisson regression analysis was conducted to understand the correlation between PM2.5 concentration in air（independent variable） and total mortality and the mortalities of respiratory disease,cardiovascular disease,stroke,chronic obstructive pulmonary disease（COPD）,coronary disease and lower respiratory tract disease（dependent variable）.Results The analysis indicated that except the impact on lower respiratory tract disease mortality,PM2.5 concentration in air was positively correlated with the mortalities of the other diseases significantly.The exposure-reaction model indicated that when PM2.5 concentration in air increased by 100μg/m3,the total mortality and the mortalities of respiratory disease,cardiovascular disease,coronary disease,stroke and COPD increased by 4.08%,8.32%,6.18%,8.32%,5.13% and 7.25% respectively.Conclusion The rise of PM2.5 concentration in air could result in the increase of mortalities of some diseases.
出处
《预防医学情报杂志》
CAS
2011年第4期257-262,共6页
Journal of Preventive Medicine Information
作者简介
赵珂，女，硕士，环境科学
