Table 5 Univariate and multivariate analysis of the factors affecting OS and DFS

Overall Survival

Female gender

0.674 (0.431–1.052)

0.083

0.677 (0.316–1.449)

0.316

Tumour size ≤5cm

0.473 (0.214–1.045)

0.064

0.797 (0.285–2.23)

0.666

Renal vascular origin

0.458 (0.237–0.886)

0.02

0.49 (0.135–1.777)

0.278

Low grade

0.164 (0.05–0.533)

0.003

0.236 (0.067–0.837)

0.025

Non-metastatic disease

0.271 (0.141–0.521)

0.001

0.772 (0.224–2.652)

0.681

Disease free Survival

Female gender

0.351 (0.164–0.752)

0.007

0.123 (0.012–1.272)

0.079

Tumour size ≤5cm

0.807 (0.395–1.649)

0.556

0.818 (0.079–8.403))

0.866

Renal vascular origin

0.523 (0.153–1.786)

0.301

0.203 (0.024–1.739)

0.146

Low grade

0.012 (0.000–2.694)

0.109

0.005 (0.000–3.412)

0.654

Non-metastatic disease

0.125 (0.039–0.399)

0.001

0.477 (0.026–8.62)

0.616