Development of a preoperative nomogram to identify low-risk early-stage breast cancer patients eligible for SLNB omission.

Although the difference did not reach statistical significance, the observed trend in T1c ≥ 1.8 cm tumors may have clinical relevance and warrants further investigation.

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Variables with a p-value < 0.01 in univariate analysis, or showing borderline significance, were included in the multivariate model.

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