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Asthma
Study findings from P.J. Villeneuve et al broaden understanding of asthma
April 15th, 2008
"Recent studies have observed positive associations between outdoor air pollution and emergency department (ED) visits for asthma. However, few have examined the possible confounding influence of aeroallergens, or reported findings among very young children," investigators in Ottawa, Canada report. "A time stratified case-crossover design was used to examine 57,912 ED asthma visits among individuals two years of age and older in the census metropolitan area of Edmonton, Canada between April 1, 1992 and March 31, 2002. Daily air pollution levels for the entire region were estimated from three fixed-site monitoring stations. Similarly, daily levels of aeroallergens were...
Source: TB & Outbreaks Week (2008-04-15)
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