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
| Variable | Patients | ΔLRχ2 | P |
|---|---|---|---|
| PAM50 ROR score | All | 15.32 | <0.001 |
| Node negative | 7.40 | 0.007 | |
| Node positive | 8.94 | 0.003 | |
| ROR-based risk groups | All | 14.83 | <0.001 |
| Node negative | 11.96 | 0.003 | |
| Node positive | 5.92 | 0.05 | |
| Luminal molecular subtypes | All | 8.73 | 0.003 |
| Node negative | 4.17 | 0.04 | |
| Node positive | 4.82 | 0.03 |