The effect of ozone and PM10 on hospital admissions for pneumonia and chronic obstructive pulmonary disease:: A national multicity study

被引:346
作者
Medina-Ramón, M
Zanobetti, A
Schwartz, J
机构
[1] Harvard Univ, Sch Publ Hlth, Dept Environm Hlth, Boston, MA 02215 USA
[2] Harvard Univ, Brigham & Womens Hosp, Sch Med, Dept Med,Channing Lab, Boston, MA 02115 USA
关键词
air pollution; effect modifiers (epidemiology); ozone; pneumonia; pulmonary disease; chronic obstructive;
D O I
10.1093/aje/kwj078
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
A case-crossover study was conducted in 36 US cities to evaluate the effect of ozone and particulate matter with an aerodynamic diameter of <= 10 mu m (PM10) on respiratory hospital admissions and to identify which city characteristics may explain the heterogeneity in risk estimates. Respiratory hospital admissions and air pollution data were obtained for 1986-1999. In a meta-analysis based on the city-specific regression models, several city characteristics were evaluated as effect modifiers. During the warm season, the 2-day cumulative effect of a 5-ppb increase in ozone was a 0.27% (95% confidence interval (CI): 0.08, 0.47) increase in chronic obstructive pulmonary disease admissions and a 0.41% (95% CI: 0.26, 0.57) increase in pneumonia admissions. Similarly, a 10-mu g/m(3) increase in PM10 during the warm season resulted in a 1.47% (95% CI: 0.93, 2.01) increase in chronic obstructive pulmonary disease at lag 1 and a 0.84% (95% CI: 0.50, 1.19) increase in pneumonia at lag 0. Percentage of households with central air conditioning reduced the effect of air pollution, and variability of summer apparent temperature reduced the effect of ozone on chronic obstructive pulmonary disease. The study confirmed, in a large sample of cities, that exposure to ozone and PM10 is associated with respiratory hospital admissions and provided evidence that the effect of air pollution is modified by certain city characteristics.
引用
收藏
页码:579 / 588
页数:10
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