Secondly they showed a marginally significant difference ( p = 0.04) in the rate of lymph node involvement, with the highest being among Her2-overexpressing subtype (56%), followed by luminal B (47%), basal-like (41%), and luminal A (34%).
The Kaplan-Meier curves based on the subclasses from Figure 1 showed a highly significant difference in OS at 3-years between the subtypes (Figure 1a , Log-Rank test: p = 0,042), with the triple negative subtype associated with the lowest survival probability (52%), but the luminal A was associated with the best survival probability (88%) compared to those in the other subtypes (77% for luminal B, 75% for Her2-overexpressing).