Table 2: Multivariate analyses for predictive factors associated with the presence of SLNB in patients with pure DCIS.

Factors Odds ratio (95% CI) value Nuclear grade intermediate and high (versus low) 8.1 (1.4–48.2) 0.021 Tumor size >30 mm (versus ≤30 mm) 5.5 (0.9–31.6) 0.059 Mastectomy (versus breast conservation) 14 (2.3–84.3) 0.004 Palpable mass (versus nonpalpable) 3.5 (0.6–21.6) 0.186