Table 5
Cox regression analysis of factors influencing risk of disease recurrence
Relative hazard (95% CI)
p Value
Serum mutant
KRAS2
positivity
6.37 (2.3–18.0)
0.0000
Dukes’ stage (advancing)
3.1 (0.96–9.9)
0.056
Chemotherapy
0.47 (0.12–1.8)
0.278