Table 5 Multivariate analysis of survival by Cox regression analysis, parsimonious model (data set, n = 180)

Variable	HR (95% CI )	p Value
Histological grade
1	1
2	5.16 ( 1.81–14.70)	0.002
3	5.29 (1.76–15.85)	0.003
Nodal status
Negative	1
Positive	1.89 (1.08–3.29)	0.025
Missing	1.02 (0.38–2.73)	0.975
P-cadherin
Negative	1
Positive	2.70 (1.54–4.73)	0.001

HR, hazard ratio.