Table 4.

Variation in length of stay for managed and non-managed care groups for each DRG

DRG	Diagnosis/ Procedure	variation managed care group 1999	2000	2001	variation non-managed care group 1999	2000	2001	difference between managed and non-managed care groups 1999	2000	2001
88	Chronic Obstructive Pulmonary Disease	14.4	9.52	9.27	17.1	10.5	10.9	-2.7**	-0.98**	-1.63**
127	Congestive Heart Failure	11.9	11.2	11.2	14.1	13.0	13.8	-2.2**	-1.80**	-2.65**
209	Hip replacement	4.91	4.59	4.04	6.67	5.72	4.95	-1.8**	-1.13**	-0.91**
358	Hysterectomy with complications	3.27	2.28	2.32	4.18	2.71	2.72	-0.9**	-0.43**	-0.40**
359	Hysterectomy without complications	0.89	0.83	0.84	0.90	0.88	0.86	-0.01	-0.05	-0.02
370	Cesarean section with complications	3.38	2.93	3.39	3.84	3.61	3.55	-0.46*	-0.68**	-0.16
371	Cesarean section without complications	0.80	0.77	0.74	0.83	0.82	0.81	-0.03	-0.05**	-0.07**

*p < 0.05 ** p < 0.001