Table 5.

Effect of 10% increase in pollutant concentration on asthma emergency visits (%)

	0-day lag			1-day lag			2-day lags
Model 1
Pollutants	Mean	95% LCI	95% UCI	Mean	95% LCI	95%UCI	Mean	95% LCI	95%UCI
PM10	0.03	-0.24	0.29	0.15	-0.16	0.46	0.43*	0.22	0.65
SO2	-0.06	-0.27	0.14	-0.01	-0.20	0.19	0.17*	0.02	0.33
O3	-0.06	-0.24	0.13	0.00	-0.09	0.09	0.05	-0.07	0.17
NO2	-0.09	-0.47	0.28	0.16	-0.10	0.42	-0.05	-0.37	0.27
Model 2
PM10	0.14	-0.17	0.44	0.16	-0.21	0.52	0.53*	0.27	0.79
SO2	-0.02	-0.26	0.21	-0.06	-0.28	0.17	0.10	-0.14	0.34
O3	-0.08	-0.25	0.09	-0.12	-0.19	-0.05	-0.04	-0.25	0.16
NO2	-0.15	-0.43	0.13	0.10	-0.19	0.38	-0.43	-0.86	0.00

◎ Model 1: Single pollutant model.

Model 2: Four pollutants model.

*Statistically significant.