Table 5.
Regimen | Patient number | Polyp ≥6 mm incl. cancer, n (%) [95% confidence limits] | Polyp ≥10 mm incl. cancer, n (%) [95% confidence limits] | ||||||
---|---|---|---|---|---|---|---|---|---|
Sensitivity | Specificity | PPV | NPV | Sensitivity | Specificity | PPV | NPV | ||
A | 23 | 3/4 (75%) [33–100%] | 18/19 (95%) [85–100%] | 0.75 | 0.95 | 3/4 (75%) [33–100%] | 19/19 (100%) [100–100%] | 1.0 | 0.95 |
B | 23 | 7/7 (100%) [100–100%] | 16/16 (100%) [100–100%] | 1.0 | 1.0 | 3/3 (100%) [100–100%] | 20/20 (100%) [100–100%] | 1.0 | 1.0 |
C | 23 | 3/3 (100%) [100–100%] | 20/20 (100%) [100–100%] | 1.0 | 1.0 | 1/1 (100%) [100–100%] | 22/22 (100%) [100–100%] | 1.0 | 1.0 |
D | 20 | 5/7 (71%) [38–100%] | 12/13 (93%) [78–100%] | 0.83 | 0.86 | 3/3 (100%) [100–100%] | 17/17 (100%) [100–100%] | 1.0 | 1.0 |
Overall | 89 | 18/21 (96%) [93–100%] | 66/68 (97%) [93–100%] | 0.9a | 0.96 | 10/11 (91%) [74–100%] | 78/78 (100%) [100–100%] | 1.0b | 0.99 |
NPV Negative predictive value, PPV positive predictive value
aPrevalence of abnormality = 0.24
bPrevalence of abnormality = 0.12