. 2019 Aug 20;14:204. doi: 10.1186/s13023-019-1165-7

Table 11.

Results of ordinary least squares (OLS) and quantile regression for inpatients

Ln TTC	OLS	QR_10	QR_25	QR_50	QR_75	QR_90	QR_98
AGE	0.004^c	0.006^c	0.005^c	0.004^c	0.001	0.0003	− 0.0003
AGE	(0.001)	(0.002)	(0.001)	(0.001)	(0.001)	(0.001)	(0.002)
LOS	0.027^c	0.030^c	0.036^c	0.032^c	0.025^c	0.021^c	0.020^c
LOS	(0.001)	(0.002)	(0.001)	(0.001)	(0.001)	(0.001)	(0.002)
R _{reimbursement rate}	0.450^c	1.061^c	0.903^c	0.794^c	1.143^c	1.384^c	1.665^c
R _{reimbursement rate}	(0.100)	(0.163)	(0.119)	(0.101)	(0.100)	(0.116)	(0.198)
OOP	0.000006^c	0.000003^c	0.000009^c	0.00006^c	0.00008^c	0.0001^c	0.0001^c
OOP	(0.000)	(0.000)	(0.000)	(0.000)	(0.000)	(0.000)	(0.000)
GENDER
Male	0	0	0	0	0	0	0
Female	0.0411	0.0256	0.0411	−0.0129	−0.0328	−0.123^c	−0.265^c
Female	(0.037)	(0.060)	(0.044)	(0.037)	(0.036)	(0.043)	(0.073)
AREA
Eastern Area	0	0	0	0	0	0	0
Central Area	−0.170^c	0.0872	− 0.100^a	− 0.127^b	− 0.179^c	− 0.157^c	−0.212^b
Central Area	(0.051)	(0.083)	(0.061)	(0.052)	(0.051)	(0.059)	(0.101)
Western Area	−0.200^c	− 0.0407	− 0.218^c	− 0.160^c	−0.0795^a	0.00839	0.177^b
Western Area	(0.043)	(0.070)	(0.051)	(0.044)	(0.043)	(0.050)	(0.085)
CITY LEVEL
Level 1	0	0	0	0	0	0	0
Level 2	0.169^a	0.128	0.114	0.0195	0.0439	0.154	0.21
Level 2	(0.090)	(0.147)	(0.107)	(0.091)	(0.089)	(0.105)	(0.178)
Level 3	0.087	0.0835	0.0834	−0.063	−0.0633	−0.0102	−0.116
Level 3	(0.090)	(0.147)	(0.107)	(0.091)	(0.089)	(0.105)	(0.178)
Level 4	0.00112	0.158	0.0444	−0.144	− 0.13	− 0.0642	− 0.15
Level 4	(0.094)	(0.153)	(0.112)	(0.095)	(0.093)	(0.109)	(0.186)
INSURANCE TYPE
UEMBI	0	0	0	0	0	0	0
URMBI	−0.106^b	− 0.0759	− 0.0343	− 0.017	− 0.0098	−0.0678	− 0.0223
URMBI	(0.047)	(0.078)	(0.057)	(0.048)	(0.047)	(0.055)	(0.094)
INSTITUTION TYPE
Class III hospital	0	0	0	0	0	0	0
Class II hospital	−0.171^c	− 0.382^c	− 0.288^c	− 0.166^c	− 0.0478	0.0888	0.341^c
Class II hospital	(0.051)	(0.084)	(0.061)	(0.052)	(0.051)	(0.060)	(0.102)
Class I hospital	−0.857^c	−1.663^c	−1.139^c	− 0.843^c	− 0.485^c	− 0.328^a	0.533
Class I hospital	(0.165)	(0.270)	(0.197)	(0.168)	(0.165)	(0.193)	(0.328)
Hospital for special
General hospital	0	0	0	0	0	0	0
Special hospital	−0.274^c	− 0.280^c	− 0.284^c	− 0.269^c	− 0.227^c	0.0795	0.117
Special hospital	(0.062)	(0.102)	(0.074)	(0.063)	(0.062)	(0.073)	(0.124)
Clinic & Community	−0.174	0.563^a	0.262	−0.268	−0.414^b	− 0.242	− 0.428
Clinic & Community	(0.206)	(0.337)	(0.247)	(0.209)	(0.206)	(0.241)	(0.410)
Pay-by-DRGs
Yes	0	0	0	0	0	0	0
No	− 0.237^c	−0.0938	− 0.0594	− 0.170^c	− 0.219^c	− 0.298^c	−1.009^c
No	(0.054)	(0.088)	(0.065)	(0.055)	(0.054)	(0.063)	(0.107)
cons	8.456^c	6.880^c	7.376^c	8.051^c	8.247^c	8.394^c	9.303^c
cons	(0.120)	(0.196)	(0.143)	(0.121)	(0.119)	(0.140)	(0.238)
No.Obs	2305	2305	2305	2305	2305	2305	2305
R²	0.36

Note: as TTC was abnormal distribution, ln TTC was used to make the variable normalized

Standard errors in parentheses

^a Significant at the 90% level., ^b Significant at the 95% level, ^c Significant at the 99% level