Table 4.
PROCEDURE BASED ON OPERATIVE REPORT | ||||
Partial Nephrectomy | Radical Nephrectomy | Total | ||
PROCEDURE BASED ON MEDICARE CLAIMS | Partial Nephrectomy | 16 | 1 | 17 |
Radical Nephrectomy | 1 | 102 | 103 | |
Total | 17 | 103 | 120 | |
Observed agreement = 98.3% | ||||
Sensitivity† = 94.1% (71.3%–99.9%) | ||||
Specificity† = 99.0% (94.7%–99.9%) | ||||
Positive Predictive Value† = 94.1% (71.3%–99.9%) | ||||
Negative Predictive Value† = 99.0% (94.7%–99.9%) |
† Calculations are for identification of partial nephrectomies based on the operative report (medical record) as the reference-standard