Table 7.

Before- and after-adjusting co linearity by principal component analysis of different air pollutants GAM model combination on day 0

Model	Type correction	NO2(Lag0)		PM10(Lag0)		SO2(Lag0)
		RR value	95%CI	RR value	95%CI	RR Value	95%CI
NO2+ PM10	before correction	1.0173	0.9502~1.0844	1.0313	0.9511 ~1.1114	-	-
	After correction	1.0229*	1.0045~1.0413	1.0278*	1.0055 ~1.0501	-	-
NO2+ SO2	before correction	0.9691	0.8976~1.0405	-	-	1.1653*	1.0377 ~1.2929
	After correction	1.0270*	1.0088~1.0453	-	-	1.0501*	1.0167 ~1.0835
PM10+ SO2	before correction	-	-	0.9970	0.9299 ~1.0641	1.1118*	1.0116 ~1.2120
	After correction	-	-	1.0349*	1.0124 ~1.0574	1.0533*	1.0192 ~1.0874
Three Pollutants	before correction	0.9592	0.8732~1.0452	1.0182	0.9373 ~1.0991	1.1607*	1.0317 ~1.2896
	After correction	1.0185*	1.0056~1.0313	1.0215*	1.0066 ~1.0365	1.0326*	1.0101 ~1.0552

Note: * P < 0.05