Table 3.
Sensitivity, specificity, accuracy and DOR for the diagnosis of malignancy with WLE and NBI
| White light endoscopy | Narrow band imaging | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Obs.1 | Obs.2 | Obs.3 | Mean (95%-CI) | Obs.1 | Obs.2 | Obs.3 | Mean (95%-CI) | Significance levela | |
| Sensitivity | 84.4% | 88.9% | 57.8% | 77.0% (68.8–85.3) | 97.8% | 97.8% | 96.8% | 93.3% (87.8–98.8) | p < 0.001 |
| Specificity | 96.8% | 98.4% | 84.4% | 97.3% (95.6–99.1) | 100% | 99.2% | 92.8% | 97.3% (95.6–99.1) | p = 1.000 |
| Accuracy | 93.5% | 95.9% | 86.5% | 92.0% (89.1–94.8) | 99.4% | 98.8% | 90.5% | 96.3% (94.3–98.2) | p = 0.001 |
| DOR | 164.2 | 492.0 | 41.4 | 120.7 | 2600.0 | 5456.0 | 70.0 | 501.8 | n.a |
DOR diagnostic odds ratio, n.a. not applicable, CI confidence interval
aThe significance level refers to the mean values