Table 5.

Multivariate Cox regression analysis of clinical variables on overall survival

Variable	HR	(95% CI)	p
Age	1.046	1.014-1.079	0.004
Gender (male)	0.628	0.187-2.110	0.452
Metastasis	1.282	0.462-3.558	0.634
Histology	0.780	0.365-1.666	0.521
Chemonecrosis ≥ 90%	0.293	0.097-0.884	0.029
YY1 in primary site (strong vs low)	8.353	1.863-37.451	0.006

HR = Hazard Rate