Table 4.

Multilevel logistic regression model for hospital readmission choice

	Parameter estimate	SE	χ2	P values	Adjusted OR
Fixed part:
Constant	−271.3	41.231	49.524	<0.001
Admitted year*	0.136	0.027	47.934	<0.001	1.14
Gender (reference: female)
Male	−0.003	0.066	0.003	0.955	1.00
Age (reference: less than 20)
20–39	−0.062	0.123	0.250	0.617	0.94
40–59	0.294	0.111	6.870	0.008	1.32
More than 59	0.034	0.102	0.116	0.735	1.03
Travel time (min)	−0.023	0.013	17.468	<0.001	0.97
Capacity of TH†	−0.017	0.035	0.204	0.658	0.98
First LOS (day)	−0.036	0.006	53.177	<0.001	0.96
First expense (RMB)	0.001	0.001	1.323	0.255	1.00
Second LOS (day)	−0.002	0.003	0.213	0.644	0.99
Interval between admissions (day)	−0.110	0.004	895.49	<0.001	0.90
Disease category (reference: cancer)
ENT	−0.406	0.263	2.462	0.131	0.67
Respiratory disease	−0.256	0.217	1.327	0.251	0.78
Circulatory disease	0.512	0.256	4.627	0.028	1.64
Digestive disease	0.553	0.227	6.217	0.013	1.74
Urinary disease	0.982	0.264	13.950	<0.001	2.68
Haematological disorders	2.310	0.853	7.641	0.004	10.03
Bones and muscles	0.245	0.242	1.066	0.301	1.28
Obstetrics and gynaecology	−0.947	0.238	15.874	<0.001	0.40
Else	−0.132	0.265	0.251	0.617	0.88
Random part:
Town variance	0.153	0.036	17.921	<0.001	—
Patient scale parameter	1	0.00	—	—	—

*TC shows a stable increase in recent years, so admitted year was included in the analysis by order of ranked data.

†Capacity of township hospital included in the analysis by order of ranked data.

ENT, ears, nose and throat; LOS, length of stay; TH-township hospital.