Urban-Rural Disparity of Generics Prescription in Taiwan: The Example of Dihydropyridine Derivatives
Table 4
Regression model of predicting the generic prescribing ratio of dihydropyridine (DHP) derivatives of a physician clinic with urbanization level and adjusting other factors.
Univariate
Multivariate
SE
-value
SE
-value
Urbanization level
Urban
Reference
Reference
Suburban
0.086
0.019
<0.001
0.043
0.019
0.024
Rural
0.150
0.027
<0.001
0.077
0.029
0.008
Prescribing physician’s age
0.005
0.001
<0.001
0.004
0.001
<0.001
Monthly visit count
0.00001
0.00001
0.133
0.00005
0.00001
<0.001
Monthly claims amount
−0.0000001
0.00000001
<0.001
−0.00000009
0.00000001
<0.001
Branch of Bureau of NHI
Taipei
Reference
Reference
Northern
0.018
0.029
0.529
0.017
0.028
0.537
Middle
0.152
0.026
<0.001
0.160
0.026
<0.001
Southern
0.144
0.028
<0.001
0.158
0.028
<0.001
Kao-Ping
0.105
0.026
<0.001
0.118
0.026
<0.001
Eastern
0.393
0.055
<0.001
0.385
0.054
<0.001
Share of male patients
0.0002
0.0003
0.510
0.001
0.0003
0.054
Share of patients exempt from copayment
−0.001
0.0004
0.008
−0.0002
0.0004
0.650
Share of patients with a heavy illness
−0.003
0.001
<0.001
−0.001
0.001
0.015
Average patients’ age
−0.003
0.001
0.005
−0.004
0.001
<0.001
Average patients’ income
−0.000002
0.000001
0.002
−0.000003
0.000001
<0.001
: regression coefficient; SE: standard error; NHI: National Health Insurance.
