From: Impacts of the zero mark-up drug policy on hospitalization expenses of COPD inpatients in Sichuan province, western China: an interrupted time series analysis
coefficients
robust std. error
t
sig
95% Conf. Interval
β1
25.78
5.36
4.81
0.000
14.92298
36.64426
β2
−310.78
114.85
− 2.71
0.010
− 543.2738
−78.28034
β3
−35.60
9.85
−3.61
0.001
− 55.54324
−15.64707
β0
4152.46
76.66
54.17
3997.279
4307.648