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Table 3 The parameters of the interrupted time series analysis for NCDs outpatients of different sexes, ages and basic medical insurance (average drug cost as the dependent variable)

From: Impact of China’s zero mark-up drug policy on drug cost of NCDs’ outpatients: an interrupted time series analysis

Indicator β0 β1 β2 β3
Estimated value P-value Estimated value P-value Estimated value P-value Estimated value P-value
Sex
 Male Diabetes 740.74 < 0.001 0.33 0.679 −51.21 0.017 −3.62 0.078
Hypertension 600.16 < 0.001 1.54 0.097 −48.26 0.047 −7.78 0.001
Coronary heart disease 833.00 < 0.001 0.47 0.712 −9.12 0.797 −11.58 0.001
 Female Diabetes 791.45 < 0.001 −0.30 0.547 −41.24 0.011 − 4.78 0.001
Hypertension 610.14 < 0.001 −0.24 0.599 −2.97 0.855 −4.40 0.002
Coronary heart disease 729.16 < 0.001 1.43 0.191 27.96 0.412 −12.51 < 0.001
Age
 0–45 Diabetes 507.08 < 0.001 1.11 0.005 −13.96 0.246 1.85 0.064
Hypertension 353.70 < 0.001 −0.21 0.734 22.70 0.255 −3.66 0.030
Coronary heart disease 541.37 < 0.001 3.01 0.210 −28.93 0.729 −9.22 0.163
 46–65 Diabetes 720.53 < 0.001 0.33 0.336 −54.40 < 0.001 −3.16 0.001
Hypertension 555.77 < 0.001 0.06 0.883 −20.16 0.158 −4.54 < 0.001
Coronary heart disease 781.70 < 0.001 0.76 0.544 7.06 0.849 −11.70 < 0.001
  > 65 Diabetes 874.52 < 0.001 −0.52 0.709 −55.50 0.094 −6.15 0.088
Hypertension 689.67 < 0.001 1.16 0.306 −43.06 0.129 −8.32 0.005
Coronary heart disease 802.53 < 0.001 2.28 0.331 −102.61 0.030 −8.91 0.117
Basic medical insurance
 BMIUE Diabetes 800.24 < 0.001 −0.19 0.822 −53.37 0.017 −4.24 0.054
Hypertension 623.11 < 0.001 1.02 0.170 −59.63 0.010 −5.60 0.021
Coronary heart disease 818.94 < 0.001 1.49 0.338 −63.06 0.117 −10.02 0.010
 BMIUR Diabetes 381.93 < 0.001 1.10 0.006 −49.01 0.001 0.01 0.993
Hypertension 281.34 < 0.001 0.69 0.349 10.71 0.682 −3.53 0.108
Coronary heart disease 573.32 < 0.001 −0.54 0.808 −42.62 0.539 −1.27 0.822
  1. Abbreviations: BMIUE basic medical insurance for urban employees, BMIUR basic medical insurance for urban residents