Table 1.
Clinical data
| Factor | ESD group (n=60) | EMR group (n=40) | P value |
|---|---|---|---|
| Age | 0.185 | ||
| ≥55 (n=58) | 38 | 20 | |
| <55 (n=42) | 22 | 20 | |
| Gender | 0.281 | ||
| Male (n=59) | 38 | 21 | |
| Female (n=41) | 22 | 19 | |
| Lesion site | 0.825 | ||
| Cardia (n=24) | 14 | 10 | |
| Gastric body (n=31) | 20 | 11 | |
| Gastric antrum (n=45) | 26 | 19 | |
| Tumor diameter | 0.242 | ||
| ≤20 mm (n=47) | 47 | 35 | |
| >20 mm (n=13) | 13 | 5 | |
| Infiltration depth | 0.736 | ||
| Mucosal layer (M) (n=79) | 46 | 33 | |
| Submucosa (SM1) (n=16) | 11 | 5 | |
| Submucosa (SM2) (n=5) | 3 | 2 | |
| Differentiation | 0.451 | ||
| Poorly differentiated (n=12) | 6 | 6 | |
| Moderate and high differentiated (n=88) | 54 | 34 |
Note: Chi-square test was used.