Analysis of short-term influences of ambient aeroallergens on pediatric asthma hospital visits

被引:37
|
作者
Zhong, Wei
Levin, Linda
Reponen, Tiina
Hershey, Gurjit K.
Adhikari, Atin
Shukla, Rakesh
LeMaster, Grace
机构
[1] Univ Cincinnati, Dept Environm Hlth, Cincinnati, OH 45267 USA
[2] Childrens Hosp, Med Ctr, Div Allergy Immunol, Cincinnati, OH 45229 USA
关键词
ambient aeroallergens; pediatric asthma hospital visit; Poisson generalized linear model;
D O I
10.1016/j.scitotenv.2006.06.019
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The objective of our study was to investigate the association between daily pediatric asthma hospital visits and daily concentrations of aeroallergens and their specific species. Records of daily asthma visits in Cincinnati area were retrieved from Cincinnati Children's Hospital Medical Center and aeroallergen sampling was performed by the Button Inhalable Sampler. The Poisson generalized linear model was carried out in which the log of the number of asthma hospital visits was related to aeroallergen level, treated as a continuous variable with adjustment for seasonal time trend, day of the week, ozone and PM2.5 concentrations, temperature and humidity. The aeroallergens having a significant impact on asthma hospital visits were ragweed, oak/maple and Pinaceae pollen. Their relative risks on asthma hospital visits with respect to a 100 counts/m(3) increase in concentration were in the range of 1.23 to 1.54. The effects in causing the asthma exacerbation were delayed by 3 or 5 days. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:330 / 336
页数:7
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