Table 5.

Regression coefficients, SEs, and statistical significance of the models for child respiratory hospital admissions using single or three factors as independent variables.

	Model
	Single factor			Three factors
	β	SE	p-Value	β	SE	p-Value
Biomass burning	0.1996	0.1138	0.0867	0.2138	0.1180	0.0775
Industrial	0.0722	0.0922	0.4378	0.0559	0.0921	0.5470
Automotive	0.0426	0.0949	0.6559	0.0832	0.0935	0.3791