Table 1.
Characteristics of Visited Practice Sites Other Than Care Delivery Attributes
| High-Value Cohort (n=12) | Average-Value Cohort (n=4) | |
|---|---|---|
| No. (%) Independently owned | 4 (33) | 1 (25) |
| No. (%) Multi-specialty group practices | 6 (50) | 1 (25) |
| No. of physicians per practice, mean (SD) | 7 (5) | 17 (27) |
| No. of primary care physicians with attributed patients, mean (SD) | 5 (6) | 7 (8) |
| No. of attributed patients per primary care physician, mean (SD) | 46 (405) | 599 (507) |
| Case mix index, mean (SD) | 1.3 (0.5) | 1.1 (0.2) |
| Allowed cost clinical risk group-adjusted O/E spending ratio, mean (SD) | 0.66 (0.11) | 0.94 (0.01) |
| Mean number of quality measures applicable to each practice | 24 (6) | 33 (10) |
| Weighted quality composite index O/E ratio, mean (SD) | 1.14 (0.04) | 0.99 (0.00) |
| No. (%) by census region | ||
| Midwest | 2 (17) | 1 (25) |
| Northeast | 3 (25) | 1 (25) |
| South | 3 (25) | 1 (25) |
| West | 4 (33) | 1 (25) |
O/E=Observed vs expected.