| SLE group (n = 85) | Non-SLE group (n = 88) | p values |
---|---|---|---|
Tumor location | Â | Â | 0.50 |
 Upper | 10 (11.8%) | 13 (14.8%) |  |
 Middle | 24 (28.2%) | 30 (34.1%) |  |
 Lower | 51 (60.0%) | 45 (51.1%) |  |
Tumor size (mm) (SD) | 15.1 ± 12.5 | 15.2 ± 12.4 | 0.96 |
Macroscopic type | Â | Â | 0.77 |
 Protruding | 38 (44.7%) | 38 (43.1%) |  |
 Flat/depressed | 39 (45.9%) | 44 (50.0%) |  |
 Combined | 8 (9.4%) | 6 (6.8%) |  |
Histological type | Â | Â | 0.30 |
 Adenoma or differentiated type | 82 (96.5%) | 87 (98.9%) |  |
 Undifferentiated type | 3 (3.5%) | 1 (1.1%) |  |
Ulcerative finding | 6 (7.1%) | 7 (8.0%) | 0.82 |
Histological depth | Â | Â | 0.95 |
 Adenoma/m/SM1 | 79 (92.9%) | 82 (93.1%) |  |
 SM2 | 6 (7.1%) | 6 (6.8%) |  |
Procedure time | Â | Â | 0.97 |
  ≤ 60 min | 61 (71.8%) | 62 (70.4%) |  |
  > 60 min ≤120 min | 18 (21.2%) | 20 (22.7%) |  |
  > 120 min | 6 (7.1%) | 6 (6.8%) |  |
Specimen size (mm) (SD) | 41.6 ± 14.9 | 42.0 ± 22.3 | 0.90 |
En bloc resection | 85 (100%) | 88 (100%) | Â |
Operator experience of < 30 cases | 1 (1.2%) | 10 (11.4%) | < 0.05 |