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Table 3 Multivariate analysis of clinicopathologic factors associated with disease-free survival

From: Adjuvant concurrent chemoradiation therapy (CCRT) alone versus CCRT followed by adjuvant chemotherapy: Which is better in patients with radically resected extrahepatic biliary tract cancer?: a non-randomized, single center study

Variable

P value

Hazard ratio

95% CI

CA 19-9

(≤ 60 U/mL versus 60 > U/mL)

< 0.01

0.434

0.256 - 0.735

N stage

0.17

1.430

0.862 - 2.374

Histologic grade

(WD/MD versus PD)

0.01

0.345

0.162 - 0.733

CCRT alone versus

CCRT followed by adjuvant chemotherapy

0.01

0.429

0.239 - 0.770

  1. WD, well differentiated; MD, moderate differentiated; PD, poor differentiated;
  2. CCRT, concurrent chemoradiation therapy; CI, confidence interval.