Table 3.
Accuracy, sensitivity, specificity and odds ratios associated with factors identified as a significant predictor of metastatic disease of papillary renal cell carcinoma (pRCC) at univariate analysis
| Feature | Criteriona | Odds ratio | Accuracyb | Specificityb | Sensitivityb |
|---|---|---|---|---|---|
| Renal vein thrombus | Present | 108.0 | 93.3 (84/90) | 98.7 (78/79) | 54.5 (6/11) |
| Location | Central | 58.0 | 92.2 (83/90) | 94.9 (75/79) | 72.7 (8/11) |
| MRI appearance | Infiltrative | 53.4 | 92.2 (83/90) | 97.5 (77/79) | 54.5 (6/11) |
| Maximum size | >68 mm | 45.9 | 91.1 (82/90) | 93.7 (74/79) | 72.7 (8/11) |
| Encapsulation | Poorly encapsulated | 35.2 | 91.1 (82/90) | 96.2 (76/79) | 54.5 (6/11) |
| Margins | Irregularity | 33.3 | 76.7 (69/90) | 74.7 (59/79) | 90.9 (10/11) |
| T stage | T2/T3 | 22.1 | 83.1 (69/83) | 83.6 (61/73) | 80.0 (8/10) |
| Perirenal invasion | Present | 9.8 | 86.7 (78/90) | 93.7 (74/79) | 36.4 (4/11) |
| Retroperitoneal collaterals | Present | 7.9 | 76.7 (69/90) | 77.2 (61/79) | 72.7 (8/11) |
| Pathological type | Type 2 | 6.0 | 57.8 (52/90) | 54.4 (43/79) | 81.8 (9/11) |
| Most common nuclear grade | High | 4.6 | 78.9 (71/90) | 83.5 (66/79) | 45.5 (5/11) |
a
For patients with multiple pRCC, the patient was considered to test positive for the criterion if the criterion was satisfied in at least one lesion
b
Data are percentages, with raw numbers in parentheses