Table 2 Univariate and multivariate Cox regression analyses of overall survival

Age, years (<  50 vs. ≥ 50)

0.820 (0.441–1.526)

0.532

1.143 (0.592–2.207)

0.691

Gender (Female vs. male)

2.253 (0.885–5.737)

0.089

2.970 (1.141–7.730)

0.026

Liver cirrhosis (No vs. Yes)

0.577 (0.244–1.368)

0.212

0.787 (0.311–1.991)

0.613

Tumor size, cm (<  5 vs. ≥ 5)

0.365 (0.176–0.758)

0.007

0.449 (0.211–0.953)

0.037

Tumor number (Single vs. Multiple)

1.436 (0.512–4.025)

0.492

2.242 (0.725–6.930)

0.161

Tumor encapsulation (Complete vs. None)

1.245 (0.662–2.341)

0.496

0.945 (0.481–1.860)

0.871

Pathological stage (I-II vs. III-IV)

2.134 (1.173–3.881)

0.013

1.729 (0.860–3.478)

0.124

ERCC6L (high vs. low)

0.463 (0.234–0.917)

0.027

0.437 (0.195–0.982)

0.045