Diagnostic performance of WavSTAT4, Endosocpic assessment and combined alogithmic assessment for characterisation of colorectal poylps < 10 mm and prediction of surveillance intervals
| WavSTAT alone | WLE+NBI assessment | Combination of WavSTAT + endoscopic assessment (algorithmic approach) | |
|---|---|---|---|
| Sensitivity | 97.6% | 85.0% | 95.8% |
| Specificity | 46.9% | 77.2% | 78% |
| NPV | 96.8% | 91% | 98.5% |
| PPV | 54.7% | 66% | 89.3% |
| Surveillance interval (% of patients coded correctly) | 81.2% | 97% | 100% |
| Surveillance interval (% of patients called earlier) | 18.8% | 3% | 0% |