Table 2. Cox proportional hazard models.

Variable	Hazard ratio for recurrence	95% CI	P-value	Hazard ratio for death	95% CI	P-value
Univariate analyses
Age	0.99	0.97–1.02	0.61	1.02	0.99–1.04	0.25
Tumour size	1.75	1.21–2.54	0.003	1.58	1.04–2.40	0.03
Nodal status	1.46	1.13–1.88	0.004	1.29	0.97–1.72	0.08
Tumour grade	2.04	0.88–4.73	0.10	1.43	0.65–3.15	0.38
MET	3.38	1.67–6.83	0.001	3.42	1.57–7.46	0.002
Multivariate analyses
Age	1.00	0.98–1.02	0.90	1.02	0.99–1.05	0.18
Tumour size	1.55	1.03–2.32	0.03	1.37	0.88–2.13	0.16
Nodal status	1.54	1.17–2.02	0.002	1.28	0.94–1.73	0.11
Tumour grade	1.65	0.68–4.02	0.27	1.11	0.48–2.54	0.81
MET	3.43	1.65–7.12	0.001	3.74	1.65–8.46	0.002

Abbreviations: CI=confidence interval; MET=mesenchymal–epithelial transition.

Variables were coded as described in Table 1.