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Table 7 Univariate and multivariate analyses of factors possibly associated with postoperative outcomes in the study population (290 patients)

From: The impact of preoperative biliary drainage on postoperative outcomes in patients with malignant obstructive jaundice: a retrospective analysis of 290 consecutive cases at a single medical center

  Univariate analysis Multivariate analysis
HR 95% CI P value HR 95% CI P value
Age > 70 0.831 0.456‑1.515 0.545    
Gender 0.971 0.601‑1.570 0.906    
Tumor site 0.970 0.606‑1.553 0.900    
PBD 0.587 0.368‑0.937 0.025    0.163
Initial Hb 1.012 0.997‑1.027 0.111    
Perioperative Hb 1.017 1.002‑1.033 0.027    0.059
Initial WBC 0.953 0.849‑1.068 0.407    
Perioperative WBC 1.006 0.891‑1.137 0.922    
Initial TB 0.999 0.997‑1.001 0.516    
Perioperative TB 1.004 1.001‑1.007 0.016 1.004 1.001‑1.007 0.017
Initial GGT 1.000 1.000‑1.000 0.860    
Perioperative GGT 1.000 1.000‑1.001 0.893    
Initial Na 0.936 0.867‑1.011 0.091    0.184
Perioperative Na 0.990 0.916‑1.071 0.806    
Initial PT 0.962 0.841‑1.100 0.567    
Perioperative PT 0.915 0.746‑1.123 0.395    
  1. HR hazard ratio, CI confidence interval, GGT gamma-glutamyl transferase