From: Evaluating the administration costs of biologic drugs: development of a cost algorithm
Dependent variable: ADMINCOST or lnADMINCOST | ||||
---|---|---|---|---|
 | GLM (log, Gamma) | PGLM/EEE (QV) | GLM (identity Gaussian) | NLLS |
Independent variables | (SE) | (SE) | (SE) | (SE) |
SUBCUTANEOUS | -2.8255 (0.314)*** | -2.6618 (0.369)*** | -3.2026 (0.363)*** | -3.2026 (0.474)*** |
INTRAMUSCULAR | -5.0158 (0.393)*** | -4.7495 (0.609)*** | -5.2737 (0.509)*** | -5.2737 (0.664)*** |
DOSFREQ | 0.4015 (0.042)*** | 0.3754 (0.059)*** | 0.428 (0.054)*** | 0.428 (0.07)*** |
PRODUCTBUND | 0.2364 (0.198) | 0.2336 (0.19) | 0.404 (0.269) | 0.404 (0.35) |
INDICATN | -0.2352 (0.145) | -0.2592 (0.133)* | -0.2896 (0.183) | -0.2896 (0.283) |
DOSFREQ2 | -0.00102 (0.0002)*** | -0.00093 (0.0001)*** | -0.00106 (0.0002)*** | -0.00106 (0.0003)*** |
DOSFREQ.INDICATN | -0.3004 (0.021)*** | -0.2775 (0.053)*** | -0.3173 (0.028)*** | -0.3173 (0.036)*** |
Intercept | 7.3703 (0.257)*** | -0.6008 (0.264) | 7.1499 (0.349)*** | 7.1499 (0.455)*** |
Regression statistics | Â | Â | Â | Â |
Log pseudo-likelihood (AIC) | -143.3921 (16.377) | — | -16.8641 (2.3182) | — |
OD parameter: | 1.589 (1.251, 1.921) | — | — | — |
Link parameter: | — | 0.078 (-0.2361, 0.3921) | — | — |
VF parameter: | — | 0.0304 (-0.0038, 0.0646) | — | — |
VF parameter: | — | 0.0899 (-0.0038, 0.1836) | — | — |
R2 (Adjusted R2) | — | — | 0.8923 (0.8285) | 0.8923 (0.8692) |