Higher exposure to traffic-related air pollution (TRAP) dramatically increases the odds of readmission to the hospital for asthma - but only for white children, according to a new Cincinnati Children's Hospital Medical Center study.The study shows that white children exposed to high levels of TRAP are three times more likely to be readmitted for asthma than white children with low TRAP exposure. Levels of TRAP exposure were not associated with increased risk of readmission of black children, despite their having overall higher rates of asthma readmission than white children.

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