Table 3.

Standard deviation and double-difference value of hospitalization expenses.

Year	URRMI group		UEBMI group		Double-difference value
	SD	Change	SD	Change
CI
Before the DIP reform
2020	7290.62	–	7397.66	–	–
After the DIP reform
2021	7033.18	−257.44	7815.15	417.49	674.93
2022	5540.97	−1492.21	6632.90	−1182.25	309.96
2023	4852.34	−688.62	5618.11	−1014.78	−326.16
CAD
Before the DIP reform
2020	7399.34	–	6035.56	–	–
After the DIP reform
2021	6594.47	−804.86	6164.55	128.99	933.86
2022	6278.35	−316.12	6342.36	177.80	493.92
2023	6044.13	−234.22	5625.13	−717.22	−483.00