Table 5.

Concentration index of hospitalization expenses for patients in primary hospitals.

Year	CI	P	CAD	P
Before the DIP reform
2020	−0.2140767	<0.001	−0.20481028	<0.001
After the DIP reform
2021	−0.17725668	<0.001	−0.23065194	<0.001
2022	−0.13948466	<0.001	−0.13557781	<0.001
2023	−0.07634542	<0.001	−0.14058769	<0.001