The difference-in-differences analysis of the predicted and actual (in parenthesis) valuesa.

a The values represent the predictions per hospital per year based on panel-data regressions. Regression for “expenditure” is a linear panel data fixed effect. The others are Poisson random effects. All regressions include 4 quintiles dummies, 3 year-dummies, the interaction between quintiles and years, province-level dummies, the log of the population per year and a private hospital indicator. The actual values from the original data are presented in parentheses.b The p-value for the t-test on the differences between the mean increase in the case group and the mean increase in the control group.The difference-in-differences analysis of the predicted and actual (in parenthesis) valuesa.