Table 4.

Concentration index of hospitalization expenses.

Year	CI	P	CAD	P
Before the DIP reform
2020	−0.1289404	<0.001	−0.10715998	<0.001
After the DIP reform
2021	−0.10741875	<0.001	−0.11411076	<0.001
2022	−0.12252005	<0.001	−0.08360314	<0.001
2023	−0.14255038	<0.001	−0.0993642	<0.001