Table 5. Comparison of LNM between PMD and MMD according to the ESD indications for differentiated EGC.
| Group | PMD | MMD | P value | |||
|---|---|---|---|---|---|---|
| LNM (%) | 95% CI | LNM (%) | 95% CI | |||
| Ab | 0/156 (0.0) | 0–2.4% | 0/45 (0.0) | 0–7.87% | – | |
| Ex | 0/146 (0.0) | 0–2.56% | 4/51 (7.84) | 3.09–18.5% | 0.005 | |
LNM, lymph node metastasis; PMD, pure moderately differentiated adenocarcinoma; MMD, mixed predominantly moderately differentiated adenocarcinoma; ESD, endoscopic submucosal dissection; EGC, early gastric cancer; CI, confidence interval; Ab, absolute indications for ESD of differentiated EGC; Ex, expanded indications for ESD of differentiated EGC.