Table 2 Multivariate analysis of risk factors for lymph node metastasis in early gastric cancer

Age

0.976

0.959–0.992

0.004

Male sex

0.47

0.321–0.688

< 0.001

Tumor size

1.272

1.095–1.485

0.002

Submucosal invasion

2.781

1.832–4.221

< 0.001

Undifferentiated-type

2.103

1.362–3.247

0.001

Lymphovascular invasion

5.383

3.318–8.732

< 0.001

Perineural invasion

3.61

1.560–8.306

0.003