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Main clinical parameters of patients.
| Parameters | Node positive | Node negative | p |
|---|---|---|---|
| Mean age (years) | 59 | 61 | > 0.05 |
| Tumor type | Adenocarcinoma | Adenocarcinoma | |
| Tumor size (cm) | 4.95X3.68 | 4.55X3.54 | > 0.05 |
| Depth of invasion | |||
| Submucosa and/or superficial MP | 4 (10.8%) | 7 (12.7%) | > 0.05 |
| Deep MP and subserosa | 33 (89.2%) | 48 (87.2%) |
