Table 3. Results of multivariate analysis of pathological and immunohistochemical parameters related to disease-specific 5-year survival according to the Cox regression model.

	Relative risk (confidence interval)	P-value
T stage (3 vs 1 and 2)	1.9 (1.0–3.5)	0.035
N stage (1 vs 0)	2.8 (1.5–5.3)	⩽0.001
M1a stage (1a vs 0)	1.8 (0.9–3.4)	0.056
Tumour differentiation grade (moderate and poor vs good)	1.6 (0.9–2.7)	0.077
Met expression (high vs low)	2.3 (1.3–4.1)	0.004