EXHIBIT 2.
Proportion Of Elderly Medicare Beneficiaries Who Spent $2,250 Or More On Prescription Drugs (The “Doughnut Hole” Threshold), By Selected Conditions, 2006
| Condition | Part D plans | Employer plans | p_value |
|---|---|---|---|
| Percent spending up to doughnut hole | |||
| All | 25% | 40% | <0.0001 |
| Hypertension | |||
| Any | 30 | 46 | <0.0001 |
| Only | 17 | 30 | <0.0001 |
| + Hyperlipidemia | 24 | 42 | <0.0001 |
| + CHF | 39 | 39 | 0.9741 |
| + Diabetes | 34 | 47 | 0.0158 |
| + Hyperlipidemia + CHF | 47 | 70 | 0.0067 |
| + Hyperlipidemia + diabetes | 42 | 59 | <0.0001 |
| + CHF + diabetes | 54 | 68 | 0.3056 |
| + Hyperlipidemia + CHF + diabetes | 61 | 82 | 0.0016 |
| Diabetes | |||
| Any | 41 | 58 | <0.0001 |
| Only | 21 | 44 | 0.0038 |
| + Hypertension | 34 | 47 | 0.0158 |
| + Hyperlipidemia | 31 | 46 | 0.0121 |
| + CHF | 45 | 57 | 0.6660 |
| + Hypertension + hyperlipidemia | 42 | 59 | <0.0001 |
| + Hypertension + CHF | 54 | 68 | 0.3056 |
| + Hyperlipidemia + CHF | 48 | 68 | 0.4120 |
| + Hypertension + hyperlipidemia + CHF | 61 | 82 | 0.0016 |
| Percent spending up to catastrophic coverage region | 4 | 9 | <0.0001 |
SOURCE: Authors’ calculations using study population as described in the text.
NOTES: See Exhibit 1. CHF is congestive heart failure.