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Table 3 Results from the Finite Mixture Model for Medicaid Study Sample (2011)

From: Association between physician adoption of a new oral anti-diabetic medication and Medicare and Medicaid drug spending

Medicaid Characteristic Spending Component
Low High
Average Beta Coefficient Average Standard Error 95% CI Standard Error Average Beta Coefficient Average Standard Error 95% CI Standard Error
Intercept 6.355 0.195 [5.973, 6.736] 6.283 0.265 [5.765, 6.802]
Time to Sitagliptin Adoptionb 0.294 0.170 [−0.039, 0.627] 0.529 0.255 [0.029, 1.028]
% Adopting Sitagliptinb 0.005 0.006 [−0.006, 0.017] −0.004 0.006 [−0.016, 0.007]
Age 0.018 0.001 [0.016, 0.020] 0.019 0.001 [0.017, 0.022]
Female −0.004 0.020 [−0.044, 0.036] 0.019 0.022 [−0.024, 0.062]
Race (Ref = White)
 Black −0.252 0.026 [−0.303, − 0.200] −0.414 0.032 [−0.476, − 0.352]
 Hispanic − 0.073 0.029 [− 0.129, − 0.017] 0.224 0.039 [0.147, 0.302]
 Race other 0.124 0.049 [0.027, 0.220] −0.093 0.052 [−0.194, 0.008]
Eligibility
 General Assistance −0.287 0.031 [−0.348, − 0.227] −0.320 0.031 [−0.381, − 0.258]
 TANFa − 0.256 0.033 [− 0.320, − 0.191] −0.273 0.038 [−0.348, − 0.197]
 Waiver − 0.662 0.100 [− 0.859, − 0.466] −0.702 0.155 [−1.006, − 0.399]
Drug Type (Ref = Combo)
 Oral Drug Only −3.360 0.023 [−3.405, −3.314] − 3.113 0.025 [−3.162, − 3.063]
 Injectable Drug Only −0.089 0.030 [−0.148, − 0.031] −0.125 0.032 [−0.188, − 0.062]
 Elixhauser − 0.019 0.004 [− 0.026, − 0.011] −0.009 0.004 [−0.017, − 0.002]
  1. aTANF Temporary Assistance for Needy Families
  2. Data sources: Medicare data from CMS, Medicaid data from PADHS, XPonent™ from QuintilesIMS
  3. bAdoption variables measured in XPonent™ from QuintilesIMS