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Table 3 Univariate and multivariate analysis of 57 patients for risk factors related to recurrence-free survival

From: Right-side versus left-side hepatectomy for the treatment of hilar cholangiocarcinoma: a comparative study

 Univariate analysisMultivariate analysis
OR (95% CI)P valueOR (95% CI)P value
Clinical variables
 Preoperative jaundice1.08 (0.50–2.33)0.829  
 Preoperative biliary drainage0.55 (0.18–1.60)0.274  
 Portal vein embolization0.97 (0.29–3.27)0.996  
 Bismuth type IV2.02 (0.94–4.34)0.0691.60 (0.73–3.48)0.235
 ICG R-15 (≥ 15%)1.62 (0.72–3.66)0.238  
Operative variables
 Operation (LH)1.19 (0.56–2.55)0.640  
 R1 resection1.17 (0.46–2.92)0.736  
 Portal vein resection0.78 (0.31–1.96)0.603  
 Transfusion2.81 (1.30–6.05)0.0082.82 (1.28–6.20)0.01
 PHLF (≥ grade B)2.26 (0.76–6.76)0.141  
 Complication (≥ IIIA)0.73 (0.32–1.64)0.735  
Pathologic variables
 Differentiation (poorly)1.76 (0.56–5.50)0.329  
 Lymphovascular invasion3.22 (1.35–7.63)0.0083.33 (1.34–8.23)0.009
 T stage (≥ T3)1.41 (0.62–3.19)0.400  
 N stage (≥ N1)1.82 (0.82–4.04)0.137  
  1. Abbreviations: ICG R-15 indocyanine green retention rate at 15 min, LH left-side hepatectomy, PHLF post-hepatectomy liver failure, OR odds ratio, CI confidence interval