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Table 4 Emergency department visits for each interquartile range change in the two-pollutant models

From: Fine particulate matter constituents associated with emergency room visits for pediatric asthma: a time-stratified case–crossover study in an urban area

  OR (95% CI) of asthma
Adjusted for temperature, humidity, and pollutant
Single-pollutant model Adjusted PM2.5 Adjusted PM10 Adjusted
Nitrate
Adjusted
Organic carbon
PM2.5   1.064 (0.889–1.274) 1.099 (0.965–1.251) 1.040 (0.906–1.193)
PM10 1.085 (0.925–1.272)   1.102 (0.995–1.220) 1.068 (0.959–1.188)
Nitrate 1.083 (0.942–1.245) 1.096 (0.969–1.240)   1.068 (0.895–1.194)
Organic carbon 1.168 (1.016–1.342) 1.155 (1.022–1.305) 1.175 (1.026–1.345)