Table 7.
Inter-rater (intra-observation) agreement of the evaluators' diagnoses of obstruction and segmentation on the scenogram, n (%)
|
Observer
|
Positive predict rate
|
Negative predict rate
|
κ (95%CI)
|
P value
|
Obstruction | I vs II | 34 (94.4) | 5 (50) | 0.498 (0.336-0.660) | 0.001 |
I vs III | 33 (91.7) | 6 (60) | 0.536 (0.382-0.690) | < 0.001 | |
II vs III | 35 (95.5) | 5 (55.6) | 0.548 (0.386-0.710) | < 0.001 | |
Segmentation | I vs II | 14 (45.2) | 11 (73.3) | 0.151 (0.03-0.272) | 0.228 |
I vs III | 18 (58.1) | 14 (93.3) | 0.426 (0.314-0.538) | 0.001 | |
II vs III | 13 (68.4) | 22 (81.5) | 0.503 (0.373-0.633) | 0.001 |
CI: Confidence interval; κ: Cohen Kappa.