Study of Hospitalization Costs in Patients with Cerebral Ischemia Based on E-CHAID Algorithm

Table 3

Multivariate analysis of cerebral ischemic disease ADRG group (N = 5204).

Variables	Assignments	Marginal mean in RMB yuan	Marginal mean’s difference in RMB yuan	Cost ratio	95% CI		P
Sex	Ref: female	27496.58
	Male	28940.61	1444.04	1.05	1.02	1.09	0.004
Age	Ref:0–17	15666.35
	18–65	34761.31	19094.96	2.22	1.91	2.58	<0.001
	>65	41220.71	25554.36	2.63	2.27	3.06	<0.001
Social insurance	Ref: yes	27604.41
	No	28827.55	1223.14	1.04	0.99	1.10	0.108
Admission route	Ref: outpatient and others	25710.88
	Emergency	30950.62	5239.73	1.20	1.16	1.25	<0.001
Comorbidities and complications	Ref: non-CC	18895.52
	CC	27889.88	8994.36	1.48	1.41	1.54	<0.001
	MCC	42596.49	23700.97	2.25	2.14	2.38	<0.001
LOS >30 days	Ref: no	13711.32
	Yes	58037.29	44325.97	4.23	3.89	4.61	<0.001
Discharge mode	Ref: discharged home	20378.89
	Transferred to another hospital	35905.05	15526.16	1.76	1.51	2.05	<0.001
	Death	31563.01	11184.12	1.55	1.36	1.76	<0.001
	Others	27419.41	7040.52	1.35	1.03	1.76	0.031