TABLE 4.
Accuracy Indices for the Initial and Final, Claims-Based Algorithms Stratified by BC Type
| Category | PPV | NPV | Sensitivity | Specificity | ||||
|---|---|---|---|---|---|---|---|---|
| Initial Algorithm (%) | Final Algorithm (%) | Initial Algorithm (%) | Final Algorithm (%) | Initial Algorithm (%) | Final Algorithm (%) | Initial Algorithm (%) | Final Algorithm (%) | |
| NMIBC | 81.0 | 87.0 | 44.2 | 79.7 | 76.1 | 93.2 | 51.5 | 65.6 |
| MIBC | 72.9 | 76.8 | 82.7 | 87.0 | 25.2 | 54.4 | 97.4 | 94.9 |
| la/mUC | 16.0 | 47.2 | 97.9 | 98.0 | 70.9 | 63.8 | 78.8 | 96.2 |
Abbreviations: BC, bladder cancer; la/mUC, locally advanced/metastatic urothelial carcinoma; MIBC, muscle-invasive bladder cancer; NMIBC, non–muscle invasive bladder cancer; NPV, negative predictive value; PPV, positive predictive value.