Table 4.

Univariate Analysis: Node-positive Alone

Variables	No. of Patients	Median Survival (moths)	p valuea (Univariate)	HR	95% CI
Treatment
Surgery only	241	11	0.234	1	0.63–1.11
Multimodal	74	11		0.84
Tumor site
Upper esophagus	9	18	0.650	1
Middle esophagus	32	10	0.556	1.31	0.54–3.18
Lower esophagus	130	10	0.183	1.75	0.77–3.98
OG junction	144	12	0.350	1.48	0.65–3.36
Depth of invasion
T0	5	11	0.001	1
T1	12	8	0.917	1.06	0.33–3.41
T2	46	24	0.176	1.12	0.43–1.78
T3	235	11	0.757	1.43	0.74–2.14
T4	14	5	0.157	2.23	0.74–6.78
Histology
Squamous	86	11	0.638	1
Adenocarcinoma	221	11	0.638	1.07	0.81–1.40
Other	8	3	0.848	1.07	0.49–2.35
Stage
1–II	63	19	<0.001	1
III–IV	251	10		2.01	1.43–2.83
Residual tumor
R0	259	12	0.035	1
R1	61	9		1.33	1.02–1.73
No. of nodes
1	84	17	<0.001	1
2–3	84	13	0.021	1.67	1.06–2.29
>3	147	9	<0.001	2.53	1.50–3.62

^aχ²

HR = hazard ratio, CI = 95% confidence intervals