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Table 3 Multivariate linear regressions on total medical cost in Xi County

From: Caesarean section rate and cost control effectiveness of case payment reform in the new cooperative medical scheme for delivery: evidence from Xi County, China

  Factor   B S.E.a Betab t p-valueb
Model 1 (CS) Constant   578.684 41.200   14.046 < 0.001
Age   3.496 1.049 0.024 3.332 < 0.001
CPR pre-CPRc      
  post-CPR −21.090 11.715 −0.014 −1.800 0.072
LOS   4.924 0.929 0.039 5.298 < 0.001
Hospital type Township hospitalc      
  County hospital 1617.581 16.538 0.761 97.811 < 0.001
R2   0.566     
Model 2 (VD) Constant   − 215.343 22.027   −9.776 < 0.001
Age   −5.800 0.652 −0.044 −8.895 < 0.001
CPR pre-CPRc      
  post-CPR 405.942 6.309 0.322 64.343 < 0.001
LOS   1.446 0.432 0.017 3.349 < 0.001
Hospital type Township hospitalc      
  County hospital 895.982 7.431 0.606 120.567 < 0.001
R2   0.518     
Model 3 (total) Constant   −493.046 20.014   −24.635 < 0.001
Age   −2.474 0.577 −0.010 −4.289 < 0.001
CPR pre-CPRc      
  post-CPR 315.185 5.779 0.128 54.540 < 0.001
LOS   2.610 0.413 0.015 6.325 < 0.001
Hospital type Township hospitalc      
  County hospital 1030.098 7.131 0.341 144.457 < 0.001
Delivery type VDc      
  CS 2130.934 6.317 0.793 337.314 < 0.001
R2   0.853     
  1. aS.E. = Standard Error
  2. bα = 0.05
  3. cReference group of categorical predictor variables in multivariate linear regressions