Table 6

Multivariate analysis (Cox model) for disease-free survival in 114 patients

n = 114Risk Ratioχ2P95% confidence interval
Stage IV16.3921.27<0.00015.37–50
Cytokeratin-positive cells in bone marrow3.123.800.0511–9.80
Cytokeratin-positive cells in peripheral blood1.631.440.2280.73–3.66