| Cytological examination alone (1) | Telomerase activity assessment alone (2) | Cytological examination + telomerase activity assessment (3) | p Value 1 vs 3(χ2 test) | |
| Sensitivity (%) | 66.7 (56.1 to 75.8) | 72.6 (62.3 to 81.0) | 89.3 (80.9 to 94.3) | 0.0004 |
| Specificity (%) | 100 (80.6 to 100) | 93.8 (71.7 to 98.9) | 96.9 (84.3 to 99.5) | 0.002* |
| Accuracy (%) | 72.0 (62.5 to 79.9) | 76.0 (66.8 to 83.3) | 90 (82.6 to 94.5) | 0.001 |
| Negative predictive value (%) | 36.4 (23.8 to 51.1) | 39.5 (25.6 to 55.3) | 62.5 (42.7 to 78.8) | 0.039 |
| Positive predictive value (%) | 100 (93.6 to 100) | 98.4 (91.4 to 99.7) | 98.8 (93.6 to 99.8) | 0.4 |
Values are shown as mean (95% confidence interval).
*Fisher test.