A summary of the results of the regression analyses.

Regression coefficient (β) for PM2.5 is shown for each regression model, as well as the p-value for each variable. P-value < 0.05 is considered a statistically significant association. Column a shows results of multivariate multiple regression for hospitalization/death rates as well as multiple regression results for diabetes prevalence. Coefficients of confounding variables in the models are not shown. Colum b shows results of univariate simple regression with respect to each disease outcome variable, with PM2.5 concentration as the explanatory variable.