Impact of respiratory infections, outdoor pollen, and socioeconomic status on associations between air pollutants and pediatric asthma hospital admissions
Fig 2
Confounding effects of outdoor pollen on the associations between asthma hospital admissions in school-age children and ozone (top) and PM2.5 (bottom).
Squares are point estimates for relative risks of asthma hospital admissions associated with increases in air pollutants. The dashed lines represent ±10% changes in the point estimates from the main model.