Table 3 Regression analysis results of comparison of national health insurance beneficiaries and medical aid beneficiaries after copayment waiver policy implementation

Intercept

1.784^a

1.791^a

1.777^a

11.874^a

11.858^a

11.929^a

Sex

−0.004^a

−0.003^a

−0.008^a

0.051^a

0.053^a

0.044^a

Age

−0.019^a

−0.022^a

−0.018^a

0.115^a

0.118^a

0.103^a

Type of medical institute

Tertiary hospital and General hospital

0.192^a

0.191^a

0.197^a

1.096^a

1.101^a

1.085^a

Hospital

0.080^a

0.074^a

0.100^a

0.328^a

0.309^a

0.378^a

Clinic

-

-

-

-

-

-

Etc. (Dental hospital, Health center, Oriental medical clinic)

−0.439^a

−0.418^a

−0.408^a

−0.139^a

−0.216^a

0.028

Fatal disease

0.426^a

0.430^a

0.418^a

0.557^a

0.564^a

0.536^a

Group (Ref: medical aids group)

−0.428^a

−0.452^a

−0.393^a

−0.177^a

−0.178^a

−0.188^a

Time

−0.125^a

−0.127^a

−0.125^a

0.035^a

0.039^a

0.023^a

Group*time (difference in difference estimator)

0.101^a

0.104^a

0.104^a

−0.123^a

−0.133^a

−0.097^a

R²

0.102

0.108

0.105

0.354

0.364

0.329