Table 2.
The performances of DCNN and endoscopist in internal test set and external test set.
| Competitors | Sensitivity, % | Specificity, % | Accuracy, % | PPV, % | NPV, % | DT(s) |
|---|---|---|---|---|---|---|
| (95%CI) | (95%CI) | (95%CI) | (95%CI) | (95% Cl) | ||
| Internal test set | ||||||
| DCNN | 88.08 | 89.05 | 88.60 | 87.64 | 89.44 | 0.028s |
| (85.24-90.44) | (86.48-91.19) | (86.74-90.22) | (84.78-90.04) | (86.90-91.54) | ||
| JE group | 69.54a | 85.69 | 78.12s | 81.08 | 76.13 | 8.05±0.21a |
| (66.88-72.07) | (83.74-87.45) | (75.78-80.30) | (78.58-83.35) | (73.94-78.20) | ||
| SE group | 89.57a | 90.00 | 89,73a | 88.76 | 90.73 | 7.69±0.25a |
| (87.71-91.17) | (88.29-91.48) | (86.79-92.08) | (86.86-90.42) | (89.07-92.16) | ||
| External test set | ||||||
| DCNN model | 92.08 | 92.05 | 92.07 | 90.2 | 93.60 | 0.028s |
| 87.91-94.94 | 88.40-94.65 | 89.46-94.08 | 85.79-93.38 | 90.17-95.92 | ||
| JE group | 70.42a | 82.95 | 77.40a | 76.64 | 77.92 | 7.98±0.19a |
| 66.18-74.33 | 79.73-85.74 | 74.81-79.79 | 72.47-80.36 | 74.54-80.96 | ||
| SE group | 90b | 90.23 | 90.13c | 87.98 | 91.91 | 7.50±0.23a |
| 86.97-92.39 | 87.59-92.36 | 88.20-91.77 | 84.79-90.58 | 89.41-93.86 | ||
a: P<0.01; b: P=0.02; c: P > 0.05. JE(juniorendoscopists); SE(seniorendoscopists); PPV (positive predictive value); NPV(negative predictive value); DT(diagnostic time).