Fig. 1From: Ambient air pollution is associated with pediatric pneumonia: a time-stratified case–crossover study in an urban areaOdds ratios (ORs) and 95% confidence intervals (CIs) for pediatric pneumonia ED visits associated with IQR increments in air pollutant levels, with adjustment for temperature and humidity. ED, emergency department; IQR, interquartile rangeBack to article page