Table 3. Risk Adjustment Model Fit Among All VA Patients and Patients With Diabetes.
| Decile of Expected Cost | All VA Patients (N = 5 472 629) | Patients With Diabetesa (n = 1 232 297) | ||||
|---|---|---|---|---|---|---|
| Expected Costs, $ | Mean Actual Costs, $ | Difference, $ (%) | Expected Costs, $ | Mean Actual Costs, $ | Difference, $ (%) | |
| 1 | 2066 | 4219 | −2153 (−104) | 6213 | 7091 | −878 (−14) |
| 2 | 4521 | 5221 | −700 (−15) | 7548 | 7297 | 250 (3) |
| 3 | 5706 | 6203 | −498 (−9) | 9002 | 9338 | −336 (−4) |
| 4 | 7372 | 7002 | 370 (5) | 11 062 | 11 030 | 31 (0) |
| 5 | 8962 | 9651 | −689 (−8) | 12 678 | 12 436 | 242 (2) |
| 6 | 10 668 | 9595 | 1073 (10) | 14 840 | 14 611 | 229 (2) |
| 7 | 12 705 | 11 370 | 1335 (11) | 17 427 | 16 800 | 627 (4) |
| 8 | 15 319 | 13 349 | 1970 (13) | 21 168 | 20 760 | 408 (2) |
| 9 | 19 371 | 18 681 | 690 (4) | 27 616 | 28 066 | −450 (−2) |
| 10 | 35 499 | 36 743 | −1244 (−4) | 49 231 | 52 938 | −3707 (−8) |
Abbreviation: VA, Department of Veterans Affairs.
a
Measured using diagnostic codes as measured by Medicare Advantage risk adjustment system version 21.