Development of a nomogram based on body composition and tumor burden indicators to predict lymph node metastasis in patients with T1 esophageal squamous cell carcinoma.

In our cohort, although the proportion of poorly differentiated tumors (G3) in the LNM(+) group (23.68%) was higher than in the LNM(−) group (12.68%), the difference did not reach statistical significance—likely due to the limited number of G3 cases, which accounted for only 14.4% of the total sample, thereby reducing statistical power.

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