Table 1.
| All Plans | Variance Improving | |||||
|---|---|---|---|---|---|---|
| (1) Percentage Minimizing | (2) Dollars Savings | (3) Percentage Savings | (4) Percentage Minimizing | (5) Dollars Savings | (6) Percentage Savings | |
| All | ||||||
| 12.17 | 296 | 31.01 | 26.89 | 237 | 23.42 | |
| Terciles of Age | ||||||
| 1 | 11.30 | 298 | 31.94 | 25.67 | 238 | 24.16 |
| 2 | 12.38 | 296 | 30.96 | 27.43 | 234 | 23.20 |
| 3 | 12.87 | 295 | 30.07 | 27.58 | 238 | 22.88 |
| Gender | ||||||
| F | 12.73 | 295 | 30.63 | 27.40 | 236 | 23.20 |
| M | 11.21 | 299 | 31.66 | 25.98 | 237 | 23.82 |
| Terciles of 2005 Expenditures | ||||||
| 1 | 10.65 | 217 | 34.26 | 27.33 | 159 | 25.14 |
| 2 | 13.04 | 264 | 30.75 | 27.31 | 208 | 23.27 |
| 3 | 12.84 | 424 | 27.68 | 25.55 | 358 | 21.84 |
| Terciles of Percent Chronic Drugs | ||||||
| 1 | 10.46 | 274 | 33.02 | 25.83 | 214 | 24.81 |
| 2 | 12.70 | 326 | 30.05 | 27.12 | 264 | 22.81 |
| 3 | 13.30 | 289 | 30.01 | 27.69 | 231 | 22.69 |
Notes: The first three columns give the percentage of patients choosing the cost minimizing plan, the average savings from switching to the cost minimizing plan, and the average savings as a percentage of realized out of pocket costs from switching to the cost minimizing plan. Columns (4)-(6) give the same numbers, but considering only plans which are variance-improving (i.e. whose variance is at least as small as the chosen plan). The % of acute drugs is computed as the proportion of claims in 2005 for a drug which also appears in the data in 2006.