Table 1.
Baseline characteristics
| Conventional ESD group (CE) (n = 22) | Ring-shaped thread counter traction ESD group (RE) (n = 21) | P value* | |
|---|---|---|---|
| Age, years (mean ± SD) | 72 ± 12 | 74 ± 10 | 0.23* |
| Gender (male/female) | 14/8 | 16/5 | 0.48** |
| Locations of lesions | 0.15** | ||
| Cecum | 3 | 5 | |
| Colon | 13 | 9 | |
| Rectum | 6 | 7 | |
| Macroscopic findings of lesions (JSCCR classification) | 0.13*** | ||
| LST-G | 12 | 14 | |
| LST-NG | 10 | 7 |
LST Lateral spreading tumor, G granular type, NG non-granular type, JSCCR Japanese society for cancer of the colon and rectum
* Unpaired t test, ** χ 2 test, *** Fisher’s exact test