Table 3.
Endoscopic findings in patients with active ulcerative colitis (n = 149)
| CMV (+) n = 34 | CMV (-) n = 115 | Accuracy (%) | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | P value | |
| Deep ulcer | 17 (50.0%) | 14 (12.2%) | 79.2 | 50.0 | 87.8 | 54.8 | 85.6 | < 0.001 |
| Punched-out ulcer | 20 (58.8%) | 8 (7.0%) | 85.2 | 58.8 | 93.0 | 71.4 | 88.4 | < 0.001 |
| Geographical ulcer | 14 (41.2%) | 25 (21.7%) | 76.5 | 41.2 | 78.2 | 35.9 | 81.8 | 0.024 |
| Longitudinal ulcer | 11 (32.4%) | 24 (20.9%) | 68.5 | 32.4 | 79.1 | 31.4 | 79.8 | 0.165 |
| Mucosal defect | 6 (17.6%) | 10 (8.7%) | 74.5 | 17.6 | 91.3 | 37.5 | 78.9 | 0.139 |
| Mucopurulent exudate | 24 (70.6%) | 66 (57.4%) | 49.0 | 70.6 | 42.6 | 26.7 | 83.1 | 0.167 |
| Spontaneous bleeding | 14 (41.2%) | 19 (16.5%) | 73.8 | 41.2 | 83.5 | 42.4 | 82.8 | 0.002 |
| Cobblestone-like appearance | 5 (14.7%) | 7 (6.1%) | 75.8 | 14.7 | 93.9 | 41.7 | 78.8 | 0.105 |
| Post inflammatory polyp | 9 (26.5%) | 21 (18.3%) | 75.8 | 26.5 | 81.7 | 30.0 | 79.0 | 0.294 |
PPV: Positive predictive value; NPV: Negative predictive value; CMV: Cytomegalovirus.