Table 3.

Additional prognostic information of the PAM50 ROR score, ROR-based risk groups, or luminal molecular subtypes expressed as difference in log-likelihood (ΔLRχ2) compared with the clinical linear predictor score alone

VariablePatientsΔLRχ2P
PAM50 ROR scoreAll15.32<0.001
Node negative7.400.007
Node positive8.940.003
ROR-based risk groupsAll14.83<0.001
Node negative11.960.003
Node positive5.920.05
Luminal molecular subtypesAll8.730.003
Node negative4.170.04
Node positive4.820.03