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Table 7 GMM empirical results of hospital level 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 − 0.2665*** (− 27.21) 0.0029 (0.18) − 0.1737*** (− 8.83) 0.6074*** (17.06) 0.2073*** (16.59) − 0.1468*** (− 14.01) − 1.3639*** (− 9.57) − 0.2807 (− 1.45)
Interaction item between hospital level and disease type 0.0395*** (10.16) 0.0154*** (3.56) 0.0544*** (10.32) − 0.0687*** (− 6.73) − 0.0187*** (− 5.12) − 0.0297*** (− 10.15) 0.0252 (0.43) 0.1063 (1.41)
Interaction item between hospital level and reimbursement ratio − 0.0456*** (− 4.70) − 0.2195*** (− 12.91) − 0.4968*** (− 25.75) − 1.0707*** (− 29.65) − 0.3166*** (− 25.44) 0.2391*** (21.05) 1.8055*** (19.04) − 0.0554 (− 0.36)
Reimbursement ratio 2.8639*** (104.50) 3.4897*** (97.41) 3.0035*** (181.38) 2.5526*** (102.23) 1.3029*** (38.28) 1.2942*** (32.73) 1.6225*** (27.47) 0.5205*** (8.44)
Deductible − 0.0005*** (− 63.59) − 0.0012*** (− 83.60) 0.0002*** (14.07) − 0.0021*** (− 84.77) − 0.0007*** (− 67.91) − 0.0002*** (− 22.20) − 0.0006*** (− 9.30) − 0.0009*** (− 10.12)
Gender − 0.0222*** (− 16.32) − 0.0572*** (− 24.42) 0.0071*** (3.16) − 0.0854*** (− 20.42) 0.0026* (1.67) 0.0090*** (6.13) 0.1256*** (11.67) − 0.0774*** (− 5.87)
Age 0.0034*** (94.57) 0.0043*** (70.72) 0.0105*** (167.93) 0.0009*** (9.61) − 0.0009*** (− 18.49) − 0.0012*** (− 29.03) − 0.0009*** (− 2.66) − 0.0018*** (− 4.70)
Length of stay 0.0369*** (26.52) 0.0445*** (25.07) 0.0136*** (24.15) 0.0175*** (21.57) 0.0554*** (32.12) 0.0582*** (28.66) 0.0123*** (10.79) 0.0007 (1.18)
Disease type − 0.0133*** (− 10.22) − 0.0727*** (− 32.26) − 0.1792*** (− 89.13) 0.2705*** (61.89) 0.0016 (0.96) − 0.0134*** (− 8.52) 1.0783*** (54.24) 0.0662*** (3.58)
Constant term 5.5159*** (488.71) 3.9204***(246.49) 3.7763***(339.61) 2.6889*** (148.19) 3.4860*** (255.49) 3.7007*** (240.35) 2.4218*** (38.25) 7.0801*** (103.57)
R2 0.6368 0.4491 0.4434 0.0863 0.4681 0.5304 0.0466 0.0262
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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