Table 1.
Prediction of NMIBC and MIBC by grade and stage of tumour
| Final Histology | N (%) | Correctly Predicted N (%) |
|---|---|---|
| NMIBC or MIBC | ||
| NMIBC | 122 (73.1) | 111 (91.0) |
| MIBC | 45 (26.9) | 40 (88.9) |
| G1 pTa | 63 (37.7) | 61 (96.8) |
| G2 pTa | 26 (15.6) | 24 (92.3) |
| G3 pTa | 1 (0.6) | 1 (100.0) |
| G1 pT1 | 1 (0.6) | 1 (100.0) |
| G2 pT1 | 11 (6.6) | 8 (72.7) |
| G3 pT1 | 20 (12.0) | 16 (80.0) |
| G2 pT2+ | 3 (1.8) | 2 (66.7) |
| G3 pT2+ | 42 (25.1) | 38 (90.5) |
| Both Grade and Stage | ||
| G1 pTa | 16 | 10 (62.5) |
| G2 pTa | 2 | 0 (0.0) |
| G3 pTa | 0 | - |
| G1 pT1 | 0 | - |
| G2 pT1 | 2 | 1 (50.0) |
| G3 pT1 | 6 | 6 (100.0) |
| G2 pT2+ | 1 | 0 (0.0) |
| G3 pT2+ | 10 | 9 (90.0) |
MIBC = muscle-invasive bladder cancer; NMIBC = non-muscle-invasive bladder cancer.