Table 3.
Ulcer evaluations after ESD, and the absence of post-ESD bleeding.
| Total (n = 53) | V group (n = 27) | E group (n = 26) | P value | |
|---|---|---|---|---|
| Ulcer stage after 4 weeks (scar, n) | 5 | 2 | 3 | 0.669∗∗ |
| Ulcer stage after 8 weeks (scar, n) | 46 | 24 | 22 | 0.42∗∗ |
| Shrinkage rate after 4 weeks (%), range | 95.4 (72.0–100) | 96.8 (72.0–100) | 97.5 (75.8–100) | 0.656∗∗ |
| Shrinkage rate after 8 weeks (%) | 100 | 100 | 100 | 0.257∗∗ |
| ESD specimen area (mm2) median (IQR) | 942.3 (588.8–1452.3) | 961.8 (707.8–1380.0) | 880.8 (588.8–1638.8) | 0.612∗∗ |
| Post-ESD bleeding | 0 | 0 | 0 |
IQR: interquartile range (a measure of variability, based on dividing a dataset into quartiles). A P value < 0.05 was considered significant. ∗∗Significant by the Mann–Whitney U test.