Table 3.

Univariate and multivariate analyses for OS.

			Univariate			Multivariate
	No. patients	Median OS (months)	HR	95% CI	p-value	HR	95% CI	p-value
Age
≤ 70	102	NR	Ref	---	---	Ref	---	---
>70	22	66	5.42	2.23-13.18	0.0002	5.42	2.23-13.18	0.0002
Any Chemo
No	51	199.2	Ref	---	---
Yes	66	NR	1.51	0.60-3.82	0.38
Any RT
No	7	NR	Ref	---	---
Yes	111	199.2	0.77	0.18-3.30	0.72
LNR
≤40%	102	199.2	Ref	---	---
>40%	22	116.4	1.66	0.67-4.12	0.30
Patients with ≥10 nodes removed
LNR
0-10%	36	NR	Ref	---	---
>10-50%	42	135.6	1.11	0.35-3.51	0.86
>50%	3	NR	2.51	0.29-21.77	0.40

Chemo=chemotherapy, RT=radiation, LNR=lymph node ratio, NR=not reached, NS=not significant