Table 8

Multivariate analysis (Cox model) for disease-free survival in 75 nonmetastatic patients

n = 75Risk ratioχ2P95% confidence interval
Estrogen receptor negative versus estrogen receptor positive3.024.080.0431.03–8.83
Cytokeratin-positive cells in bone marrow2.823.140.0760.90–8.85
Clinical N1/N2 versus N02.572.580.1080.81–8.13