Table 2.
Characteristics of lesions
| SLE group (n = 85) | Non-SLE group (n = 88) | p values | |
|---|---|---|---|
| Tumor location | 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 | 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 | 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 | 0.95 | ||
| Adenoma/m/SM1 | 79 (92.9%) | 82 (93.1%) | |
| SM2 | 6 (7.1%) | 6 (6.8%) | |
| Procedure time | 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%) | |
| Operator experience of < 30 cases | 1 (1.2%) | 10 (11.4%) | < 0.05 |
*SD standard deviation