2.

Multivariate analysis of risk factors for presence of LVI

Clinicopathological features	HR	95% CI	P
LVI, lymphovascular infiltration; CEA, carcinoembryonic antigen; HR, hazard ratio; 95% CI, 95% confident interval.
Tumor size	1.109	0.783−1.572	0.559
Borrmann type	1.101	0.854−1.420	0.458
Histology	1.583	0.966−2.595	0.068
Lymph node metastasis	1.476	1.286−1.694	<0.001
Tumor deposits	0.989	0.680−1.438	0.952
Preoperative CEA levels	1.202	0.796−1.813	0.382
Depth of invasion	1.270	1.009−1.597	0.041
Tumor location	1.060	0.920−1.221	0.418