Table 2.
Regression Results of the Year-Long Number of Beneficiaries Switching In and Switching Out of Medicare Advantage Plans, 1999–2008
| Switchers-In | Switchers-Out | |
|---|---|---|
| Base payment | 0.53*** (0.11) | −0.68*** (0.17) |
| HCC | 304.60*** (25.75) | −448.26*** (54.41) |
| Part D and lock-in | 152.26*** (10.01) | 183.00*** (16.43) |
| Medicare pop | 0.04* (0.02) | 0.01 (0.02) |
| Time trend | −34.72*** (3.77) | 38.82*** (6.07) |
| Constant | −517.39** (246.55) | 363.44 (232.52) |
| County-fixed effects | Yes | Yes |
| Adj. R2 | 0.751 | 0.472 |
| N | 30,390 | 30,390 |
Means (standard deviations) of the dependent variables: Switchers-In = 226.8 (828.7), Switchers-Out = 149.1 (743.7).
*, **, *** indicate statistical significance at the 90, 95, and 99 percent confidence intervals, respectively.
Standard errors are in parentheses.