Table 3 Univariate and multivariate disease-free survival analyses of prognostic factors
Univariate | Multivariate | |||
|---|---|---|---|---|
Characteristics | p value | Hazard ratio | 95% CI | p value |
Age years | ||||
 < 65 | 0.410 | NA | ||
 65 ≦ | ||||
Gender | ||||
 Male | 0.114 | NA | ||
 Female | ||||
Size (mm) | ||||
 < 35 | 0.433 | NA | ||
 35 ≦ | ||||
Circumferential tumor location | ||||
 Hepatic side | 0.073 | NA | ||
 No hepatic side | ||||
Tumor location | ||||
 Proximal | 0.500 | NA | ||
 Distal | ||||
EHBD resection | ||||
 No | 0.352 | NA | ||
 Yes | ||||
Liver resection | ||||
 No | 0.706 | NA | ||
 Yes | ||||
Lymphatic invasion | ||||
 No | 0.056 | NA | ||
 Yes | ||||
Vascular invasion | ||||
 No | 0.018* | 1 | ||
 Yes | 1.465 | 0.201–3.015 | 0.717 | |
T category | ||||
 T1 | 0.177 | |||
 T2, T3 | NA | |||
N category | ||||
 N (-) | < 0.001* | 1 | ||
 N (+) | 13.24 | 3.759–46.64 | < 0.001* | |
Perineural invasion | ||||
 No | < 0.001* | 1 | ||
 Yes | 11.96 | 2.594–55.14 | < 0.001* | |