Table 2.

Associations between daily emergency hospital visits for cardiorespiratory causes and one day of exposure to different sources of high PM₁₀ values at lag 0–7. All models are adjusted for time trend, annual variation, climate and influenza season.

Indicator of PM10 Source	Percent Change in Emergency Hospital Visits *		Model
	% (95% CI)	p	R2
All sources	−0.7 (−2.6, 1.4)	0.519	0.23
-adjusted ** for PM10	−2.4 (−5.6, 0.8)	0.144	0.22
-adjusted for NO2 and H2S	0.2 (−2.2, 2.5)	0.892	0.24
-adjusted for NO2 H2S and PM10	−2.8 (−6.6, 1.2)	0.162	0.25
Volcanic ash	4.8 (0.6, 9.2)	0.024	0.23
-adjusted for PM10	6.1 (0.0, 12.7)	0.052	0.22
-adjusted for NO2 and H2S	6.2 (2.6, 12.5)	0.041	0.25
-adjusted for NO2 H2S and PM10	7.3 (−0.4, 15.5)	0.064	0.25
Dust storm	5.1 (0.5, 9.9)	0.028	0.23
-adjusted for PM10	5.8 (0.9, 19.9)	0.019	0.22
-adjusted for NO2 and H2S	2.1 (−3.3, 8.0)	0.444	0.25
-adjusted for NO2 H2S and PM10	1.2 (−4.6, 7.4)	0.692	0.25
Other sources	−3.3 (−5.6, −1.0)	0.007	0.23
-adjusted for PM10	−4.4 (−7.1, −1.7)	0.002	0.22
-adjusted for NO2 and H2S	−1.2 (−3.8, 1.5)	0.375	0.25
-adjusted for NO2 H2S and PM10	−3.6 (−6.9, −0.2)	0.036	0.25

* Estimated effects of 1 day with exposure during the lag period (0–7 days). ** n = 1941 for the unadjusted model, n = 1748 for the model adjusted for PM₁₀, n = 1464 for the model adjusted for NO₂ and H₂S, n = 1403 for the model adjusted for three pollutants.