Table 3.

Results of multiple linear regression models for the whole sample

Crude model		Model I	Model II
Adjusted total fee
2014	0	0	0
2015	69.72 (−36.14, 175.59)	50.23 (−56.18, 156.64)	1122.11 (1018.04, 1226.17) ***
2016	−213.16 (−316.29, −110.03) ***	−224.61 (−328.94, − 120.29) ***	1121.19 (1018.37, 1224.02) ***
Actual compensation ratio
2014	0	0	0
2015	12.66 (12.17, 13.15) ***	12.70 (12.2, 13.19) ***	6.04 (5.61, 6.47) ***
2016	15.91 (15.43, 16.39) ***	15.93 (15.44, 16.41) ***	7.13 (6.70, 7.55) ***
Out-of-pocket ratio
2014	0	0	0
2015	−2.29 (−2.50, −2.07) ***	−2.09 (− 2.31, − 1.88) ***	0.07 (−0.10, 0.25)
2016	−5.62 (−5.84, −5.41) ***	−5.30 (− 5.50, − 5.09) ***	−1.88 (− 2.05, − 1.70) ***
Constituent ratio of treatment fee
2014	0	0	0
2015	2.96 (2.72, 3.19) ***	3.05 (2.81, 3.28) ***	4.36 (4.13, 4.59) ***
2016	7.53 (7.29, 7.76) ***	7.67 (7.44, 7.90) ***	9.34 (9.12, 9.57) ***
Constituent ratio of inspection and laboratory fee
2014	0	0	0
2015	0.29 (0.16, 0.43) ***	0.25 (0.11, 0.38) ***	0.53 (0.39, 0.67) ***
2016	0.73 (0.60, 0.86) ***	0.69 (0.56, 0.82) ***	1.14 (1.01, 1.28) ***
Length of stay
2014	0	0	0
2015	−0.28 (−0.40, −0.15) ***	−0.39 (− 0.52, − 0.27) ***	0.17 (0.04, 0.30) **
2016	− 0.60 (− 0.72, − 0.48) ***	−0.74 (− 0.87, − 0.62) ***	−0.06 (− 0.19, 0.07)

Data in the table: β (95%CI)

***p < 0.01; **0.01 ≤ p < 0.05; *p < 0.1

Model I adjusted for sex, age and individual attribute; model II adjusted for compensation type