Table 3

Proportional hazard model for DFS (multivariate analysis)

VariableReferenceβapRR95% CI
Tumor plasma DNANo tumor plasma DNA0.970.082.60.84–8.2
Tumor size ≥ 50 mmTumor size < 50 mm1.10.033.01.1–8.2
Lymph node metastasesLymph node without metastases0.980.092.60.85–8.3
Stages IIIa + IIIbStages I + II0.650.41.90.4–8.9
  • a β, hazards model coefficient; RR, exponential β and RR.