No recurrence | Recurrence | p Value | |
---|---|---|---|
Age, years (median, SD) | 68.0 (11.0) | 69.0 (10.6) | 0.79 |
Sex | |||
Male | 348 (82.7%) | 73 (17.3%) | 0.305 |
Female | 320 (85.3%) | 55 (14.7%) | |
Previous attempt at EMR (n, %) | |||
Yes | 79 (76.7%) | 24 (23.3%) | 0.032 |
No | 590 (85.0%) | 104 (15.0%) | |
Lesion size (n, %) | |||
20 mm | 152 (95.0%) | 8 (5.0%) | <0.001 |
21–30 mm | 230 (89.5%) | 27 (10.5%) | |
31–40 mm | 154 (84.6%) | 28 (15.4%) | |
>40 mm | 132 (67.0%) | 65 (33.0%) | |
Location (n, %) | |||
Rectum <5 cm from dentate line | 31 (70.5%) | 13 (29.5%) | 0.044 |
Rectum >5 cm from dentate line | 90 (76.9%) | 27 (23.1%) | |
Sigmoid | 67 (85.9%) | 11 (14.1%) | |
Descending colon | 23 (82.1%) | 5 (17.9%) | |
Splenic flexure | 13 (81.3%) | 3 (18.8%) | |
Distal transverse | 22 (91.7%) | 2 (8.3%) | |
Mid transverse | 30 (88.2%) | 4 (11.8%) | |
Proximal transverse | 27 (90.0%) | 3 (10.0%) | |
Hepatic flexure | 58 (90.6%) | 6 (9.4%) | |
Ascending colon | 157 (86.7%) | 24 (13.3%) | |
Caecum | 128 (86.5%) | 20 (13.5%) | |
Caecum ICV involved | 18 (72.0%) | 7 (28.0%) | |
Caecum appendiceal orifice involved | 6 (66.7%) | 3 (33.3%) | |
Location group (n, %) | |||
Distal colon | 211 (79.0%) | 56 (21.0%) | 0.007 |
Proximal colon (splenic flexure or above) | 459 (86.4%) | 72 (13.6%) | |
Paris classification (n, %) | |||
0-IIa | 338 (91.4%) | 32 (8.6%) | <0.001 |
0-Is | 160 (78.4%) | 44 (21.6%) | |
0-IIa+ls | 127 (73.4%) | 46 (26.6%) | |
Other | 42 (89.4%) | 5 (10.6%) | |
Morphology (n, %) | |||
Granular | 446 (81.2%) | 103 (18.8%) | 0.004 |
Non-granular | 143 (91.1%) | 14 (8.9%) | |
Mixed | 42 (82.4%) | 9 (17.6%) | |
Unable to classify | 32 (97.0%) | 1 (3.0%) | |
Kudo classification (n, %) | |||
Kudo I & II | 78 (98.7%) | 1 (1.3%) | <0.001 |
Kudo III | 264 (84.9%) | 47 (15.1%) | |
Kudo IV | 296 (79.1%) | 78 (20.9%) | |
Kudo V | 13 (92.9%) | 1 (7.1%) | |
Fellow involved (n, %) | |||
Yes | 247 (88.2%) | 33 (11.8%) | 0.015 |
No | 420 (81.6%) | 95 (18.4%) | |
Intraprocedural bleeding (n, %) | |||
No | 615 (85.5%) | 104 (14.5%) | <0.001 |
Yes | 55 (69.6%) | 24 (30.4%) | |
Adrenaline in submucosal injectate (n, %) | |||
No | 129 (75.0%) | 43 (25.0%) | <0.001 |
Yes | 540 (86.4%) | 85 (13.6%) | |
Lifting (n, %) | |||
Lifts well | 625 (84.7%) | 113 (15.3%) | 0.029 |
Lifts poorly | 42 (73.7%) | 15 (26.3%) | |
Current type (n, %) | |||
Non-microprocessor controlled | 80 (74.1%) | 28 (25.9%) | 0.003 |
Microprocessor controlled | 588 (85.5%) | 100 (14.5%) | |
En bloc resection (n, %) | |||
No | 532 (81.2%) | 123 (18.8%) | <0.001 |
Yes | 138 (97.2%) | 4 (2.8%) | |
Additional modality (n, %) | |||
None | 513 (87.5%) | 73 (12.5%) | <0.001 |
APC | 40 (55.6%) | 32 (44.4%) | |
Other | 117 (83.6%) | 23 (16.4%) | |
APC use (n, %) | |||
No | 630 (86.8%) | 96 (13.2%) | <0.001 |
Yes | 40 (55.6%) | 32 (44.4%) | |
Submucosal fibrosis (n, %) | |||
Yes | 555 (85.3%) | 96 (14.7%) | 0.030 |
No | 113 (77.9%) | 32 (22.1%) | |
Majority polyp histology (n, %) | |||
Tubular adenoma | 179 (87.7%) | 25 (12.3%) | 0.016 |
Tubulovillous adenoma | 371 (80.8%) | 88 (19.2%) | |
Villous adenoma | 15 (68.2%) | 7 (31.8%) | |
Sessile serrated adenoma/polyp | 89 (92.7%) | 7 (7.3%) | |
Traditional serrated adenoma | 9 (90.0%) | 1 (10.0%) | |
Other (ie, invasive cancer and underlying polyp histology not reported, lipoma) | 6 (100.0%) | 0 (0.0%) | |
Dysplasia (n, %) | |||
None | 64 (94.1%) | 4 (5.9%) | 0.001 |
Low grade | 463 (85.1%) | 81 (14.9%) | |
High grade | 140 (76.5%) | 43 (23.5%) | |
EMR duration (min) median (SD) | 15.0 min (17.0) | 30.0 min (24.6) | <0.001 |
APC, argon plasma coagulation; EMR, endoscopic mucosal resection.