Table 2

Univariate and multivariate analysis for predictors of overall axillary pathologic complete response

PredictorOR (95% Cl)
Univariate analysisMultivariate analysis
Histologic type
 Lobular (Ref)11
 Ductal4.43 (0.99–19.89)2.16 (0.18–26.15)
 Mixed ductal/lobular**
Receptor subtype
 ER+/PR+/HER2− (Ref)11
 ER+/PR−/HER2−3.42 (1.42–8.22)2.16 (0.60–7.70)
 HER2+5.04 (2.72–9.33)2.41 (0.90–6.48)
 Triple-negative3.82 (1.89–7.70)2.39 (0.88–6.54)
Tumour grade
 Low (1–2) (Ref)11
 High (3)2.11 (1.27–3.51)1.78 (0.80–3.94)
Nodal density
 Multiple (Ref)1
 Single1.11 (0.61–2.03)
Residual tumour
 Yes (Ref)11
 No7.28 (4.31–12.29)6.74 (2.89–15.67)
Tumour size0.93 (0.81–1.06)0.91 (0.76–1.08)
  • CI = confidence interval; ER = estrogen receptor; HER2 = human epidermal growth factor receptor 2; OR = odds ratio; PR = progesterone receptor; Ref = reference.

  • * Could not be determined.