Table 2

Univariate analysis of prognostic factors for overall survival in metal and plastic stent group

PredictorHR95% CI for HRp Value
Age1.01(0.99 to 1.04)0.1671
Karnofsky score (≥80 vs <80)0.40(0.25 to 0.67)0.0004*
Liver metastases (yes vs no)2.36(1.32 to 4.22)0.0037*
Stent type (metal vs plastic)0.36(0.22 to 0.60)<0.0001*
Whipple resection (yes vs no)0.19(0.06 to 0.61)0.0053*
Chemoradiation (yes vs no)1.89(1.10 to 3.24)0.0221*
Restent (yes vs no)1.08(0.65 to 1.78)0.7640
Number of restent1.06(0.80 to 1.42)0.6787
  • *Significant result at the 0.05 level of significance.