Table 2.
Polyp, Adenoma, and Serrated Polyp Detection Rates (95% CI*) for Median Endoscopist Normal Withdrawal Time
| Median Endoscopist NWT* |
Endoscopists | Polyp Detection Rate Rate % (95% CI) |
Adenoma Detection Rate Rate % (95% CI) |
Serrated Polyp Detection Rate Rate % (95% CI) |
|
|---|---|---|---|---|---|
| N | % | ||||
| 3–5 minutes | 5 | 11.9 | 38.7 (35.6 – 42.0) | 20.1 (17.5 – 22.8) | 3.9 (2.8 – 5.4) |
| 6 minutes | 5 | 11.9 | 42.6 (39.5 – 45.7) | 23.8 (21.3 – 26.6) | 5.0 (3.7 – 6.5) |
| 7 minutes | 2 | 4.8 | 50.8 (48.2 – 53.5) | 30.2 (27.8 – 32.7) | 8.3 (6.9 – 9.9) |
| 8 minutes | 12 | 28.6 | 52.0 (49.5 – 54.6) | 30.4 (28.1 – 32.8) | 10.2 (8.7 – 11.9) |
| 9 minutes | 8 | 19.0 | 53.1 (50.2 – 56.1) | 33.6 (30.9 – 36.4) | 9.5 (7.9 – 11.4) |
| 10 minutes | 4 | 9.5 | 43.1 (40.3 – 45.9) | 24.5 (22.1 – 27.0) | 8.7 (7.2 – 10.4) |
| >10 minutes | 6 | 14.3 | 47.8 (44.2 – 51.4) | 20.8 (18.0 – 23.8) | 11.8 (9.6 – 14.2) |
*
NWT: Normal Withdrawal Time; 95% CI: 95 % Confidence Intervals
Detection Rates = the number of exams with findings of polyp / adenoma or serrated polyp divided by the total number of exams
Ω
Serrated polyps include any serrated adenoma or sessile serrated polyp or hyperplastic polyps found proximal to the sigmoid.