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太原市空气污染对心脑血管疾病死亡率急性影响的Poisson广义可加模型分析 被引量:18

Acute Effect of Air Pollution on Cardiovascular Mortality in Taiyuan
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摘要 目的定量化研究太原市大气污染对居民心脑血管疾病日死亡率的急性影响。方法通过死因监测系统收集2004年太原市心脑血管疾病死亡病例资料,从太原市气象局获得气象资料,大气污染资料来源于太原市环境监测站。采用Poisson广义可加模型进行太原市大气污染与居民心脑血管疾病日死亡率的回归分析,同时控制气象因素、时间趋势、周日效应混杂因素的影响。以Bootstrap抽样法对数学模型的共曲线性进行校正并估计误差。结果2004年太原市空气中PM10、SO2、NO2、CO的日均浓度分别为173.55、79.34、23.03、2214.59μg/m3;太原市心脑血管疾病日死亡率为7例/日。Pearson相关分析结果表明,SO2、CO、PM10浓度与温度的相关性的顺位为SO2(r=-0.7016,P<0.01)>CO(P=-0.4383,P<0.01)>PM10(r=-0.2162,P<0.01)。滞后效应和累积效应GAM时序分析结果均显示,SO2和NO2同时引入,PM10和CO的健康效应达到最大值;而SO2和NO2在模型中未呈现统计学意义。Bootstrap校正共曲线性误差后,全污染物累积效应模型中,PM10的RR为1.216(95%CI:1.057~1.399),CO的RR为1.156(95%CI:1.061~1.263)。结论太原市大气PM10和CO污染对居民心脑血管疾病死亡率具有急性影响。SO2和CO浓度与温度具有相关性,提示SO2和CO与冬季采暖有关。对颗粒物而言,除采暖因素以外还存在其他重要的污染源。 Objective To analyze quantitatively the acute effect of serious air pollution on cardiovascular mortality in Taiyuan, a typical city where the air was heavy polluted in China. Methods Mortality data in 2004 were from Taiyuan mortality surveillance system, meteorological data and air pollution data were from Taiyuan Meteorological Bureau and Taiyuan Environmental Monitoring Station, respectively. Generalized Additive Model (GAM) extended Poisson regression was used to examine the relationship between air pol...
出处 《环境与健康杂志》 CAS CSCD 北大核心 2008年第1期11-15,共5页 Journal of Environment and Health
关键词 Poisson广义可加模型 空气污染 死亡率 Poisson generalized additive model Air pollution Mortality
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参考文献15

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