Table 7.

Change in the proportion of RW <1 cases in each MDC group before and after the implementation of the DRG payment system.

MDC	Variable	Base intercept β0		Base slope β1		Horizontal change β2		Trend change β3
		Estimated value	p -value	Estimated value	p -value	Estimated value	p -value	Estimated value	p -value
MDCE	Percentage of RW <1 cases	0.665	0.000	0.005	0.241	−0.073	0.087	−0.027	0.004
MDCM	Percentage of RW <1 cases	0.737	0.000	0.004	0.843	−0.236	0.157	0.000	0.000
MDCS	Percentage of RW <1 cases	0.505	0.000	0.028	0.001	−0.022	0.716	−0.079	0.000