Table 1.
Patient characteristics (n = 92).
| Total (n = 92) | |
|---|---|
| Age (years) | 66.3 ± 12.9 |
| Gender, n (%) | |
| Male | 59 (64.1) |
| Female | 33 (35.9) |
| Tumor size (mm) | 37.2 ± 17.9 |
| Tumor location, n (%) | |
| Cecum | 8 (8.7) |
| Right colon | 44 (47.8) |
| Left colon | 17 (18.5) |
| Rectum | 23 (25.0) |
| Macroscopic type, n (%) | |
| LST-NG | 35 (38.0) |
| LST-G | 50 (54.3) |
| Submucosal tumor | 7 (7.6) |
| Histology, n (%) | |
| Carcinoid tumor | 5 (5.4) |
| Lipoma | 2 (2.2) |
| Adenoma, high grade dysplasia | 39 (42.4) |
| Adenocarcinoma sm1 | 5 (5.4) |
| Adenocarcinoma sm2 | 5 (5.4) |
| Adenocarcinoma mp | 4 (4.4) |
| Adenocarcinoma m | 32 (34.8) |
| Nonlifting sign, n (%) | |
| Negative | 73 (79.3) |
| Positive | 19 (20.7) |
| Previous biopsy, n (%) | |
| Negative | 63 (68.5) |
| Positive | 29 (31.5) |
| Procedure time (minutes) | 59.0 ± 36.7 |
m: intramucosal cancer; sm1: submucosal invasion <1000 μm; sm2: submucosal invasion ≥1000 μm; mp: muscularis propriae invasion; LST-NG: laterally spreading tumors-nongranular type; LST-G: laterally spreading tumors-granular type.