Table 4. Results of the Cox regression analysis among patients with wide resection margins.

Factor	Hazard Ratio	95% CI	P
Patient nationality
Norwegian	1.000
Russian	2.257	1.186–4.295	0.013
Malignancy grade			0.009*
1	1.000
2	3.672	1.200–11.240	0.023
3	5.484	1.828–16.447	0.002
Metastasis at time of diagnosis
No	1.000
Yes	2.900	1.332–6.315	0.007
VEGFR-3
Low	1.000
High	1.907	1.024–3.549	0.042

*Overall significance as a prognostic factor.