Figure 8
From: Associations between ozone and morbidity using the Spatial Synoptic Classification system
The effect of short-term changes in ozone concentrations on hospital admissions under various air masses for Charlotte, Raleigh, and Greensboro for lags of 0 to 5 days. Percentage change (and 95% confidence interval) in (a) asthma and (b) MI admissions per 10 ppb increase in ozone, controlling for dew point temperature, day of the week, nonlinear seasonal effects, and long-term trends.