Table 2.

Prognostic factors of PFS and OS analyzed by Cox proportional hazard models for young patients with SCC.

Prognostic factors	PFS			OS
	Hazard ratio	95%CI	P	Hazard ratio	95%CI	P
Bulky tumor	1.198	0.426–3.375	0.733	3.286	0.703–15.348	0.130
DSI	2.300	0.527–10.041	0.268	0.920	0.138–6.155	0.932
LVSI	1..451	0.464–4.539	0.522	4.264	0.505–35.962	0.183
LN metastases	11.029	2.742–44.358	0.001**	9.151	1.165–71.857	0.035*
Adjuvant RT	6.356	1.689–23.917	0.006**	12.260	1.646–91.329	0.014*

^*P < 0.05.

**P < 0.01.