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©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Aug 21, 2014; 20(31): 10927-10937
Published online Aug 21, 2014. doi: 10.3748/wjg.v20.i31.10927
Published online Aug 21, 2014. doi: 10.3748/wjg.v20.i31.10927
Risk factor | Total(n = 916) | Diagnosed(n = 510) | Missed(n = 406) | Univariate analysis | Multivariate analysis | ||
χ2test | P value | OR (95%CI) | P value | ||||
Patient-related | |||||||
Age | 9.021 | 0.003 | |||||
< 60 (yr) | 493 | 297 (60.2) | 196 (39.8) | 1 | |||
≥ 60 (yr) | 423 | 213 (50.4) | 210 (49.6) | 2.062 (1.390-3.061) | < 0.001 | ||
Sex | 1.586 | 0.208 | |||||
Male | 559 | 302 (54.0) | 257 (46.0) | ||||
Female | 357 | 208 (58.3) | 149 (41.7) | ||||
Anesthesia | 0.197 | 0.657 | |||||
Yes | 239 | 136 (56.9) | 103 (43.1) | ||||
No | 677 | 374 (55.2) | 303 (44.8) | ||||
History of adenomas | |||||||
Yes | 243 | 129 (53.1) | 114 (46.9) | 0.899 | 0.343 | ||
No | 673 | 381 (56.6) | 292 (43.4) | ||||
Previous surgery | 0.105 | 0.746 | |||||
Yes | 45 | 24 (53.3) | 21 (46.7) | ||||
No | 871 | 486 (55.8) | 385 (44.2) | ||||
Diverticulosis | 0.013 | 0.909 | |||||
Yes | 51 | 28 (54.9) | 23 (45.1) | ||||
No | 865 | 482 (55.7) | 383 (44.3) | ||||
Numbers at first colonoscopy | 0.163 | 0.686 | |||||
< 3 | 580 | 320 (55.2) | 260 (44.8) | ||||
≥ 3 | 336 | 190 (56.5) | 146 (43.5) | ||||
Concomitance with protruding adenoma(s) at first colonoscopy | 127.154 | < 0.001 | |||||
No | 280 | 234 (83.6) | 46 (16.4) | 1 | |||
Yes | 636 | 276 (43.4) | 360 (56.6) | 7.759 (4.420-13.618) | < 0.001 | ||
Bowel preparation | 45.773 | < 0.001 | |||||
Good | 757 | 460 (60.8) | 297 (39.2) | 1 | |||
Poor | 159 | 50 (31.4) | 109 (68.6) | 4.389 (2.314-8.352) | < 0.001 | ||
Adenoma-related | |||||||
Size | 122.706 | < 0.001 | |||||
≥ 10 mm | 172 | 159 (92.4) | 13 (7.6) | 1 | |||
6-9 mm | 391 | 202 (51.7) | 189 (48.3) | 9.239 (4.306-19.824) | < 0.001 | ||
< 6 mm | 353 | 149 (42.2) | 204 (57.8) | 19.613 (8.984-42.822) | < 0.001 | ||
Location | 74.571 | < 0.001 | |||||
Rectum | 184 | 152 (82.6) | 32 (17.4) | 6.81 | 0.0091 | 1 | |
Left colon | 322 | 175 (54.3) | 147 (45.7) | 2.866 (1.623-5.062) | < 0.001 | ||
Right colon | 410 | 183 (44.6) | 227 (55.4) | 3.259 (1.819-5.838) | < 0.001 | ||
Advanced adenoma | 113.850 | < 0.001 | |||||
Yes | 205 | 181 (88.3) | 24 (11.7) | ||||
No | 711 | 329 (46.3) | 382 (53.7) | ||||
Pathologic classification | 74.745 | < 0.001 | |||||
Tubular | 745 | 366 (49.1) | 379 (50.9) | ||||
Tubulovillous and villous | 151 | 132 (87.4) | 19 (12.6) | ||||
Serrated | 20 | 12 (60.0) | 8 (40.0) | ||||
Procedure-related | |||||||
Proficiency | 28.18 | < 0.001 | |||||
> 1000 cases | 585 | 363 (62.1) | 222 (37.9) | 1 | |||
500-1000 cases | 234 | 109 (46.6) | 125 (53.4) | 2.219 (1.397-3.525) | 0.001 | ||
< 500 cases | 97 | 38 (39.2) | 59 (60.8) | 3.003 (1.568-5.754) | 0.001 | ||
Specialty | 6.86 | 0.009 | |||||
Gastroenterologist | 739 | 427 (57.8) | 312 (42.2) | ||||
Non-gastroenterologist | 177 | 83 (46.9) | 94 (53.1) | ||||
Operative mode | 4.862 | 0.027 | |||||
One-person technique | 721 | 415 (57.6) | 306 (42.4) | ||||
Two-person technique | 195 | 95 (48.7) | 100 (51.3) | ||||
Withdrawal time | 6.069 | 0.014 | |||||
≥ 6 min | 254 | 158 (62.2) | 96 (37.8) | 1 | |||
< 6 min | 662 | 352 (53.2) | 310 (46.8) | 1.958 (1.276-3.006) | 0.020 |
- Citation: Xiang L, Zhan Q, Zhao XH, Wang YD, An SL, Xu YZ, Li AM, Gong W, Bai Y, Zhi FC, Liu SD. Risk factors associated with missed colorectal flat adenoma: A multicenter retrospective tandem colonoscopy study. World J Gastroenterol 2014; 20(31): 10927-10937
- URL: https://www.wjgnet.com/1007-9327/full/v20/i31/10927.htm
- DOI: https://dx.doi.org/10.3748/wjg.v20.i31.10927