Table 5 Prognostic factors for disease-free survival (DFS), univariate and multivariate analyses

Age (years)

1.008(0.984–1.033)

0.499

Sex

1.128(0.594–2.144)

0.712

BMI (kg/m²)

1.000(0.905–1.105)

0.998

CEA (ng/mL)

0.980(0.946–1.015)

0.256

TNM stage

0.905

I

Reference

Reference

II

0.821(0.335–2.007)

0.665

III

1.073(0.472–2.435)

0.867

IV

0.932(0.198–4.391)

0.929

Complications

0.076*

0.074

None

Reference

Reference

Reference

Reference

Minor

2.190(1.116–4.297)

0.023

2.220(1.131–4.359)

0.020

Major

1.574(0.684–3.621)

0.289

1.478(0.641–3.406)

0.359

ASA grade

0.699

1

Reference

Reference

2

0.782(0.411–1.491)

0.456

3

0.731(0.273–1.959)

0.533

Per-op CCRTx

0.934(0.415–2.104)

0.870

Post-op CCRTx

1.036(0.565–1.899)

0.909

Low-VFA vs high-VFA

1.095(0.598–2.007)

0.769

Low-MFA vs high-MFA

0.502(0.267–0.943)

0.032*

0.478(0.254–0.901)

0.022*

Low-SMI vs high-SMI

1.151(0.628–2.110)

0.649

Low-SMD vs high-SMD

2.248(1.195–4.228)

0.012*

2.280(1.211–4.291)

0.011*