Table 1.
Baseline Characteristics
| Variable | Total (n=860) | Non-recurred (n=848) | Recurred (n=12) | p-value |
|---|---|---|---|---|
| Age, yr | 47.66±11.78 | 47.61±11.80 | 51.38±10.05 | 0.31 |
| Male sex | 498 (57.91) | 488 (97.99) | 10 (2.01) | 0.07 |
| EUS | 304 (35.35) | 301 (99.01) | 3 (0.99) | 0.55 |
| EUS depth | 0.57 | |||
| MM | 104 (34.21) | 104 (100) | 0 | |
| SM | 195 (64.14) | 192 (98.46) | 3 (1.54) | |
| PM | 5 (1.64) | 5 (100) | 0 | |
| ESD | 265 (30.81) | 261 (98.49) | 4 (1.51) | 1.00 |
| EMR | 598 (69.53) | 589 (98.49) | 9 (1.51) | 1.00 |
| Endoscopic size, mm | 5.94±2.76 | 5.94±2.75 | 5.48±3.30 | 0.29 |
| Pathologic size, mm | 4.69±2.39 | 4.68±2.38 | 5.59±2.64 | 0.33 |
| Grade (n=684) | <0.001 | |||
| Grade 1 | 670 (77.91) | 665 (99.25) | 5 (0.75) | |
| Grade 2 | 14 (1.63) | 11 (78.57) | 3 (21.43) | |
| Mitosis (n=784) | <0.001 | |||
| <2 (/10HPF) | 759 (88.26) | 754 (99.34) | 5 (0.66) | |
| 2–20 (/10HPF) | 10 (1.16) | 9 (90.00) | 1 (10.00) | |
| >20 (/10HPF) | 15 (1.74) | 13 (86.67) | 2 (13.33) | |
| Recurrence outcome | NA | |||
| None | 848 (98.60) | 848 (100) | 0 | |
| Focal | 1 (0.12) | 0 | 1 (100) | |
| Lymph node | 1 (0.12) | 0 | 1 (100) | |
| Metachronous | 8 (0.93) | 0 | 8 (100) | |
| Others | 2 (0.23) | 0 | 2 (100) | |
| CCI | 0.30 | |||
| 0 | 435 (50.58) | 431 (99.08) | 4 (0.89) | |
| 1 | 215 (25.00) | 212 (98.60) | 3 (1.40) | |
| ≥2 | 210 (24.42) | 205 (97.62) | 5 (2.38) |
Data are presented as mean±SD or number (%).
EUS, endoscopic ultrasonography; MM, muscularis mucosae; SM, submucosal; PM, muscularis propria; ESD, endoscopic submucosal dissection; EMR, endoscopic mucosal resection; HPF, high-power field; CCI, Charlson Comorbidity Index; NA, not available.