Table 2.

Univariate Cox Regression Analysis for Overall Survival and Disease-Free Survival.^a

	Overall survival		Disease-free survival
Variables	HR (95% CI)	P	HR (95% CI)	P
Gender
Female vs. Male	1.246 (0.683-2.655)	0.391	1.130 (0.573-2.228)	0.724
Age
>60 vs. ≤60	0.878 (0.471-1.637)	0.682	0.770 (0.413-1.436)	0.411
BMI	0.915 (0.848-0.988)	0.023	0.921 (0.853-0.993)	0.033
Chronic diseases
Yes vs. No	0.679 (0.265-1.742)	0.421	0.643 (0.251-1.645)	0.357
Preoperative albumin level
Low vs. Normal	1.143 (0.446-2.929)	0.780	1.025 (0.400-2.624)	0.960
Surgical approach
Sweet	1 (reference)		1 (reference)
Ivor Lewis/McKeown	0.736 (0.367-1.478)	0.389	0.763 (0.380-1.531)	0.446
Location
Upper/Middle	1 (reference)		1 (reference)
Lower/EGJ	0.396 (0.181-0.863)	0.020	0.401 (0.184-0.874)	0.022
Tumor length
<5 cm vs. ≥5cm	2.489 (1.033-5.999)	0.042	2.076 (0.864-4.986)	0.102
Pathological features
Pure SCCE	1 (reference)		1 (reference)
Combined SCCE	0.867 (0.431-1.742)	0.867	0.743 (0.371-1.491)	0.404
pT category
T1-2	1 (reference)		1 (reference)
T3-4	1.532 (0.821-2.860)	0.180	1.632 (0.873-3.049)	0.125
pN category
N0	1 (reference)		1 (reference)
N+	2.291 (1.179-4.450)	0.014	2.288 (1.178-4.441)	0.014
Chemotherapy
Yes vs. No	0.497 (0.258-0.954)	0.036	0.563 (0.293-1.083)	0.085
Radiotherapy
Yes vs. No	0.693 (0.290-1.656)	0.409	0.716 (0.300-1.710)	0.452

Abbreviations: HR, hazard ratio; 95%CI, 95% confidence interval; vs, versus; BMI, body mass index; EGJ, esophagogastric junction.

^a Bold values refer to a significant difference.