Table 2 Estimation results, using ordinary least squares and spatial seemingly unrelated regression models
From: Medicare modernization and diffusion of endoscopy in FFS medicare
| Â | OLS Model, 2001-2005 | OLS Model, 2006-2009 | SSUR Model, 2001-2005 | SSUR Model, 2006-2009 | ||||
|---|---|---|---|---|---|---|---|---|
|  | Coef. | P > |t| | Coef. | P > |t| | Coef. | P > |t| | Coef. | P > |t| |
Age 65-74a | 0.013 | 0.112 | -0.019 | 0.123 | 0.012 | 0.077 | -0.016 | 0.144 |
Age 75-84a | 0.059 | 0.000 | -0.037 | 0.011 | 0.035 | 0.000 | -0.042 | 0.002 |
Age 85 + a | -0.110 | 0.000 | -0.182 | 0.000 | -0.077 | 0.000 | -0.185 | 0.000 |
Femalea | -0.002 | 0.850 | 0.120 | 0.000 | -0.002 | 0.825 | 0.121 | 0.000 |
African American | 0.019 | 0.000 | 0.018 | 0.000 | 0.016 | 0.000 | 0.016 | 0.000 |
Asian | -0.042 | 0.127 | 0.005 | 0.851 | -0.022 | 0.358 | 0.020 | 0.430 |
Hispanica | -0.037 | 0.000 | -0.001 | 0.960 | -0.025 | 0.000 | 0.002 | 0.877 |
all othera | -0.016 | 0.001 | -0.023 | 0.000 | -0.012 | 0.004 | -0.023 | 0.000 |
Population density | 0.000 | 0.989 | 0.000 | 0.481 | 0.000 | 0.979 | 0.000 | 0.539 |
Poor English | -0.002 | 0.079 | -0.004 | 0.028 | -0.002 | 0.087 | -0.003 | 0.031 |
Graduatea | 0.087 | 0.000 | 0.035 | 0.000 | 0.065 | 0.000 | 0.023 | 0.000 |
Importance Medicarea | 0.030 | 0.003 | 0.046 | 0.000 | 0.022 | 0.014 | 0.044 | 0.000 |
Average Poverty | -0.032 | 0.000 | -0.026 | 0.001 | -0.030 | 0.000 | -0.019 | 0.009 |
Distance endoscopy | -0.026 | 0.000 | -0.021 | 0.000 | -0.021 | 0.000 | -0.017 | 0.000 |
Dual/ESRD/disableda | -0.024 | 0.000 | -0.041 | 0.000 | -0.021 | 0.000 | -0.043 | 0.000 |
MA plan penetration | -0.005 | 0.009 | -0.004 | 0.182 | -0.007 | 0.000 | -0.004 | 0.073 |
Competition endoscopy | 1.325 | 0.007 | 1.073 | 0.041 | 1.342 | 0.002 | 1.083 | 0.031 |
Spatial laga | Â | Â | Â | Â | 0.029 | 0.000 | 0.019 | 0.000 |