Table 2.
Test characteristics of the Centers for Medicare and Medicaid Services (CMS) disease-free survival algorithm*
| Censoring Period | Sensitivity (95% CI) | Specificity (95% CI) | Area under ROC (95% CI) |
|---|---|---|---|
| 2 y | 83% (36% to 100%) | 95% (83% to 100%) | 84% (66% to 100%) |
| 5 y | 100% (81% to 100%) | 97% (83% to 100%) | 97% (90% to 100%) |
The test characteristics were estimated by comparing CMS files with gold-standard clinical trial data pertaining to 45 elderly women with lymph node–positive breast cancer treated on the adjuvant chemotherapy trial CALGB 9344. CI = confidence interval; ROC = receiver operator curve.