Table 4 Univariate and multivariate analysis for DFS

 1

1.3 (0.12–14)

0.8500

0.48 (0.02–8.74)

0.616

 2

7 (0.95–52)

0.0560

5.79 (0.43–78.08)

0.185

 3

14 (1.9–100)

0.0093

30.36 (1.75–526)

0.019

 4

30 (3.8–230)

0.0013

–

–

ypT1

2.6 (0.63–11)

0.1800

4.8 (0.72–32.05)

0.104

ypT2

3.6 (1.1–12)

0.0410

1.76 (0.36–8.68)

0.487

ypT3

5.6 (1.7–18)

0.0043

0.95 (0.20–4.37)

0.943

ypT4

4.7 (1.2–18)

0.0250

0.79 (0.15–4.19)

0.784

ypN1

1.9 (0.85–4.4)

0.1100

0.68 (0.23–2.03)

0.487

ypN2

3.3 (1.5–7.3)

3.2e-03

0.55 (0.16–1.89)

0.343

ypN3

4.8 (2.3–10)

4.6e-05

0.39 (0.09–1-54)

0.178

IntraOP MTS

3.9 (2–7.8)

7.6e-05

56.8 (3.5–906)

0.004

Postoperative CT

0.33 (0.2–0.54)

9.3e-06

0.32 (0.19–0.54)

2.3 e-05