Table 3.
Post-training detection rates based on colonoscopies performed by trained vs untrained endoscopists
| 2015 | 2016 | 2017 | 2018 | Overall post-training | ||||||||
| Trained endoscopists (n=2687) | By untrained endoscopists (n=10 420) | Trained endoscopists (n=2921) | Untrained endoscopists (n=12 295) | Trained endoscopists (n=2700) | Untrained endoscopists (n=13 737) | Trained endoscopists (n=1453) | Untrained endoscopists (n=8515) | Trained endoscopists (n=10 377) | Untrained endoscopists (n=44 967) | OR (95% CI) | P value* | |
| ≥1 Proximal SP (=PSPDR), % | 12.50% | 10% | 13% | 10% | 15% | 10% | 16% | 10% | 14% | 10% | 1.49 (1.07 to 2.07) | 0.018 |
| ≥1 SP | 28% | 25% | 28% | 25% | 27% | 23% | 2.70% | 21% | 28% | 24% | 1.27 (1.04 to 2.55) | 0.021 |
| ≥1 HP | 23% | 20% | 21.50% | 19% | 20% | 17% | 21.50% | 16% | 22% | 18% | 1.30 (1.02 to 1.65) | 0.035 |
| ≥1 SSL | 8.90% | 7.50% | 10% | 7.80% | 11% | 7.90% | 9.30% | 7.40% | 9.70% | 7.70% | 1.30 (1.02 to 1.66) | 0.034 |
| ≥1 TSA | 0.70% | 1.00% | 0.90% | 1.00% | 0.70% | 0.90% | 0.60% | 0.60% | 0.70% | 0.90% | 0.89 (0.62 to 1.30) | 0.58 |
| ≥1 Adenoma (=ADR), % | 70% | 69% | 71% | 67% | 68.50% | 63% | 63% | 57% | 68.50% | 64% | 1.20 (1.04 to 1.38) | 0.012 |
| ≥1 Advanced adenoma | 49% | 50% | 47% | 44% | 41% | 39% | 37% | 36% | 45% | 42% | 1.08 (0.95 to 1.22) | 0.23 |
Percentages ≥10% are rounded to the nearest integer.
*P values are based on mixed-effects logistic regression analyses, with fixed effects for training and adjusted with random intercepts for type of centre and endoscopist.
ADR, adenoma detection rate; HP, hyperplastic polyp; PSPDR, proximal serrated polyp detection rate; SP, serrated polyp; SSL, sessile serrated lesion; TSA, traditional serrated adenoma.