Table 2.

Parsimonious Cox models for survival until death from breast cancer

Univariate
Multivariate
VariableDefinitionRR (95% CI)PRR (95% CI)P
Tumor size (cm)<210.00011
≥23.02 (1.74-5.24)1.78 (0.99-3.22)0.06
Histologic grade111
26.12 (2.38-15.70)0.00023.76 (1.36-10.45)0.01
39.06 (3.50-23.48)0.00014.14 (1.44-11.91)0.008
Lymph nodesNegative10.00011
Positive2.84 (1.66-4.86)2.38 (1.34-4.21)0.003
HER2Negative10.0021
Positive2.52 (1.42-4.49)1.80 (0.97-3.35)0.06
Cyclin ENegative10.00011
Positive2.68 (1.64-4.38)2.00 (1.16-3.43)0.01
GMPNone10.00041
02.60 (1.53-4.41)1.94 (1.12-3.37)0.02
  • NOTE: Multivariate model: 65 events in 259 subjects.