Table 4.

Multivariate prognostic factors and survival

	Variables	CI	HR	P value
PFS	T stage	0.46-10.60	2.23	0.313
	N stage	0.76-4.42	1.84	0.172
	Stage	0.16-9.08	0.380	0.551
	Response	3.37-13.92	2.16	0.001
OS	Median age	0.018-0.739	0.114	0.023
	N stage	0.238-1.69	0.635	0.365
	Response	3.717-9.443	1.873	0.001