Validation results of the classification criteria
| Criteria | Sensitivity | Specificity | NPV | PPV |
|---|---|---|---|---|
| Loss of acetowhitening | 96.2% (93.4–97.9%) | 93.8% (88.9–96.9%) | 90.9% (85.5–94.8%) | 97.5% (95.4–98.8%) |
| Surface pattern • Normal • Abnormal | 77.0% (69.7–83.3%) 99% (97.5–99.7%) | 99.0% (97.5–99.7%) 77.0% (69.7–83.3%) | 91.4% (88.4–93.9%) 96.9% (92.2–99.1%) | 96.9% (92.2–99.1%) 91.4% (88.4–93.9%) |