Table 3.

Multivariate analysis testing the probability of pCR as a function of intrinsic breast subtype and RPS

Variable	Odds Ratio (95%CI)	P-value
Array-based subtypes
Luminal A	1 (reference)
Basal	9.30 (4.02–25.5)	<0.0001
HER2-enriched	7.20 (2.50–22.7)	0.0002
Luminal B (HER2 negative)	3.40 (1.21–10.4)	0.020
Luminal B (HER2 positive)	3.79 (0.47–21.9)	0.19
RPS value (per one unit decrease)	1.48 (1.04–2.10)	0.027

Odds ratio of pCR determined using multivariate logistic regression analysis of the indicated covariates. Odds ratios for intrinsic subtypes were calculated relative to Luminal A tumors. Chi-square P-value determined using likelihood ratio test. CI=confidence interval.