Table 4.

Ratios of the imputation-corrected SE (that accounts for between imputation uncertainty) to the average SE from the ensemble runs from single-source models for all respiratory and all cardiovascular ED visits

	Inflation of SE
Source	All respiratory	All cardiovascular
Biomass burning	1.341	1.164
Primary coal combustion	1.206	1.260
Dust/resuspended soil	1.028	1.020
Diesel-fueled vehicles	1.333	1.112
Gasoline-fueled vehicles	1.248	1.068
Secondary organic carbon	1.387	1.044

SE = standard error. ED = emergency department. Inflation of SE calculated as the SE accounting for both between- and within-model uncertainty divided by the average of the SEs from the 10 models for each source-outcome combination (SE accounting for only within-model uncertainty).