Table 3 Multivariate logistic regression analysis for risk factors on IMA-LN metastasis

Distance from anal verge

−1.545

0.718

4.633

0.213

0.052–0.871

0.031*

CEA level

−2.721

0.980

7.710

0.066

0.010–0.049

0.005*

Tumor size

−0.481

0.777

0.383

0.618

0.135–2.835

0.536

Pathological type

0.003

0.806

0.000

1.003

0.207–4.869

0.997

Differentiation

−3.913

0.714

30.050

0.020

0.005–0.081

0.000*

Nerve invasion

−1.484

0.845

3.084

0.227

0.043–1.118

0.079

T stage

−2.169

1.078

3.883

0.121

0.015–1.045

0.048*

N stage

−0.672

0.586

1.316

1.958

0.621–6.167

0.251