Table 5.
Pre- and post-training results in experienced and trainee groups using BLI.
| Variable | Pre-training % (95% CI) | Post-training % (95% CI) | Odds ratioa (95% CI) | p value |
|---|---|---|---|---|
| Experienced group | ||||
| Sensitivity | 79 (69, 85) | 97 (94, 100) | 17.1 (3.65, 79.8) | <0.001 |
| Specificity | 95 (90, 99) | 96 (94, 99) | 2.47 (0.43, 14.2) | 0.31 |
| PPV | 94 (90, 98) | 97 (92, 100) | 1.85 (0.51, 6.74) | 0.35 |
| NPV | 81 (73, 88) | 97 (93, 99) | 8.15 (2.38, 27.9) | 0.001 |
| Accuracy | 87 (82, 91) | 97 (95, 100) | 7.26 (2.72, 19.4) | <0.001 |
| High confidence | 71 (65, 77) | 88 (83, 91) | 3.46 (2.04, 5.89) | <0.001 |
| Trainee group | ||||
| Sensitivity | 79 (70, 85) | 94 (90, 98) | 5.49 (1.89, 15.9) | 0.002 |
| Specificity | 96 (93, 99) | 87 (79, 92) | 0.29 (0.08, 0.81) | 0.02 |
| PPV | 96 (89, 98) | 89 (80, 93) | 0.34 (0.11, 1.07) | 0.06 |
| NPV | 82 (74, 88) | 93 (86, 97) | 3.10 (1.28, 7.53) | 0.01 |
| Accuracy | 88 (83, 92) | 91 (85, 93) | 1.44 (0.76, 2.71) | 0.26 |
| High confidence | 67 (60, 72) | 80 (76, 86) | 4.00 (2.10, 7.62) | <0.001 |
| All | ||||
| Sensitivity | 79 (72, 84) | 96 (92, 97) | 8.44 (3.48, 20.4) | <0.001 |
| Specificity | 95 (92, 98) | 92 (86, 95) | 0.54 (0.23, 1.26) | 0.15 |
| PPV | 95 (91, 97) | 92 (89, 95) | 0.67 (0.30, 1.49) | 0.33 |
| NPV | 81 (77, 86) | 95 (92, 98) | 4.62 (2.27, 9.38) | <0.001 |
| Accuracy | 87 (84, 90) | 94 (92, 96) | 2.61 (1.55, 4.38) | <0.001 |
| High confidence | 69 (64, 73) | 84 (81, 88) | 3.73 (2.48, 5.62) | <0.001 |
BLI: Blue Light Imaging; CI: confidence interval; NPV: negative predictive value; PPV: positive predictive value.