Table 4.

Variable of Interaction With CAF Dose^*

Variable of Interaction	P
HER2 positive v HER2 negative	.079
HER2 positive or Topo–IIα amplified (≥ 2.0) v all others	.34
HER2 positive and Topo–IIα amplified (≥ 2.0) v all others	.77

Abbreviations: CAF, cyclophosphamide, doxorubicin, and fluorouracil; Topo–IIα, topoisomerase IIα.

^*All terms were modeled as dichotomous.