From: Establishment and evaluation of a nomogram predicting risks of missed diagnoses of colorectal polyps
Variable | Patients without | Patients with | OR (95%CI) | P |
---|---|---|---|---|
missed polyps | missed polyps | |||
(n = 535) | (n = 164) | |||
Age (years), \(\overline{x} \pm SD\) | 52.6 ± 12.1 | 57.0 ± 12.8 | 1.03(1.01–1.05) | < 0.001 |
Sex, Male/Female | 339/196 | 102/62 | 0.95(0.66–1.37) | 0.786 |
Symptom, Yes/No | 375/160 | 122/42 | 1.24(0.83–1.84) | 0.289 |
Family history of CRC, Yes/No | 37/498 | 15/149 | 1.36(0.72–2.54) | 0.342 |
Diverticulum history, Yes/No | 37/498 | 16/148 | 1.46(0.79–2.69) | 0.232 |
Sedation colonoscopy, Yes/No | 219/316 | 53/111 | 0.69(0.48–0.99) | 0.048 |
Endoscopist’s experience | ||||
500 − 1000/ ≥ 1000 | 120/370 | 50/87 | 1.77(1.18–2.66) | 0.006 |
< 500/ ≥ 1000 | 45/370 | 27/87 | 2.55(1.50–4.34) | 0.001 |
Bowel preparation, Poor/Adequate | 85/450 | 49/115 | 2.26(1.50–3.39) | < 0.001 |
Retroflected view, No/Yes | 472/63 | 156/8 | 2.60(1.22–5.55) | 0.013 |
Withdrawal time, < 6/ ≥ 6 | 195/340 | 83/81 | 1.79(1.26–2.54) | 0.001 |
No. of Polyps detected at first colonoscopy, ≥ 2/ < 2 | 260/275 | 112/52 | 2.28(1.57–3.30) | < 0.001 |
No. of Right colon polyps, ≥ 2/ < 2 | 63/472 | 42/122 | 2.58(1.66–4.00) | < 0.001 |
No. of Left colon polyps, ≥ 2/ < 2 | 85/450 | 38/126 | 1.60(1.04–2.46) | 0.033 |
No. of Rectal polyp, ≥ 2/ < 2 | 32/503 | 17/147 | 1.82(0.98–3.37) | 0.057 |
No. of Polyps < 6 mm, ≥ 2/ < 2 | 67/468 | 19/145 | 0.92(0.53–1.57) | 0.749 |
No. of Polyps ≥ 6 mm, ≥ 2/ < 2 | 113/422 | 78/86 | 3.39(2.34–4.90) | < 0.001 |
No. of Flat polyps, ≥ 2/ < 2 | 60/475 | 20/144 | 1.10(0.64–1.89) | 0.730 |
No. of Protruding polyps, ≥ 2/ < 2 | 177/358 | 83/81 | 2.07(1.45–2.96) | < 0.001 |
Interval | 20.8 ± 23.6 | 24.5 ± 26.5 | 1.01(0.99–1.01) | 0.089 |