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Table 6 The effect of interaction items on medical expenditure

From: The effect of different classification of hospitals on medical expenditure from perspective of classification of hospitals framework: evidence from China

Variables Medical expenditure
Total medical expenditure Drug expenditure Diagnostic testing expenditure Medical consumables expenditure Nursing care expenditure Bed expenditure Surgery expenditure Blood expenditure
Hospital level − 0.2893*** (− 28.42) 0.0392** (2.24) − 0.2376*** (− 13.89) 0.4808*** (14.87) 0.0938*** (8.39) − 0.1386*** (− 12.69) − 1.3494*** (− 9.16) − 0.2736 (− 1.32)
Interaction item between hospital level and disease type 0.0314*** (10.10) 0.0141*** (2.64) 0.0561*** (11.00) − 0.0655*** (− 6.62) − 0.0159*** (− 4.63) − 0.0302*** (− 9.06) 0.0259 (0.45) 0.1052 (1.39)
Interaction item between hospital level and reimbursement ratio − 0.0008 (− 0.09) − 0.3152*** (− 19.34) − 0.3593*** (− 22.28) − 0.8498*** (− 28.11) − 0.1039*** (− 9.99) 0.2058*** (20.25) 1.8337*** (17.42) − 0.0563 (− 0.32)
Reimbursement ratio 2.8309*** (440.73) 3.5476*** (319.95) 2.9152*** (276.05) 2.4498*** (122.53) 1.1996*** (169.50) 1.3211*** (190.63) 1.5306*** (27.33) 0.5100*** (8.26)
Deductible − 0.0005*** (− 69.85) − 0.0012*** (− 92.15) 0.0002*** (15.39) − 0.0021*** (− 86.76) − 0.0007*** (− 78.44) − 0.0002*** (− 27.55) − 0.0006*** (− 8.92) − 0.0009*** (− 10.33)
Gender − 0.0217*** (− 16.08) − 0.0581*** (− 24.99) 0.0082*** (3.71) − 0.0854*** (− 20.42) 0.0052*** (3.47) 0.0088*** (6.10) 0.1265*** (11.77) − 0.0785*** (− 5.93)
Age 0.0034*** (107.14) 0.0043*** (78.89) 0.0106*** (201.84) 0.0009*** (9.61) − 0.0008*** (− 23.45) − 0.0012*** (− 36.05) − 0.0010*** (− 3.65) − 0.0018*** (− 4.83)
Length of stay 0.0376*** (390.34) 0.0442*** (267.03) 0.0157*** (93.52) 0.0188*** (62.92) 0.0565*** (527.48) 0.0580*** (557.69) 0.0136*** (19.36) 0.0008 (1.49)
Disease type − 0.0148*** (− 9.36) − 0.0672*** (− 24.62) − 0.1853*** (− 71.68) 0.2650*** (54.04) − 0.0048*** (− 2.73) − 0.0108*** (− 6.31) 1.0692*** (52.30) 0.0666*** (3.44)
Time Controlled Controlled Controlled Controlled Controlled Controlled Controlled Controlled
Constant term − 5.8602*** (− 17.53) − 8.7812*** (− 15.29) − 1.6141*** (− 2.97) − 6.2706*** (− 6.09) 3.2270*** (6.24) 3.4783*** (6.90) − 7.0911*** (− 3.76) 7.0770*** (11.33)
R2 0.6395 0.4561 0.4533 0.0956 0.5035 0.5342 0.0485 0.0267
Sample size 488,623 486,558 483,777 483,797 488,166 486,079 117,194 8885
  1. ***Significant at 1%,**Significant at 5%, *Significant at 10%, t-statistics in parentheses. The medical expenditure in the model are all calculated on a logarithmic basis
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