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Table 3 Univariate and Multivariate Cox proportional hazard analyses

From: Local efficacy and survival outcome of salvage endoscopic therapy for local recurrent lesions after definitive chemoradiotherapy for esophageal cancer

Characteristic Number Univariate Multivariate
HR 95 % CI P value HR 95 % CI P value
Local recurrence-free survival
Location        
 Upper 22 ref    ref   
 Middle-Lower 55 0.95 0.41–2.16 0.894 1.13 0.49–2.60 0.777
cT factor        
 1–2 43 ref    ref   
 3–4 34 2.01 0.94–4.32 0.072 1.89 0.87–4.12 0.107
uT factor        
 1 67 ref    ref   
 2 10 2.55 0.95–6.86 0.065 1.21 0.42–3.46 0.725
Circumferential spread        
  < 1/4 45 ref    ref   
 1/4 ≤ 32 3.38 1.54–7.41 0.002 3.10 1.35–7.15 0.008
Overall survival
age        
  ≤ 65 39 ref    ref   
  > 65 38 1.20 0.67–2.16 0.540 1.44 0.77–2.68 0.250
Location        
 Upper 22 ref    ref   
 Middle-Lower 55 0.91 0.48–1.74 0.779 1.14 0.57–2.28 0.721
cT factor        
 1–2 43 ref    ref   
 3–4 34 2.01 1.12–3.62 0.020 1.96 0.98–3.92 0.055
Lymph node metastasis        
 Absent 47 ref    ref   
 Present 30 1.59 0.88–2.88 0.123 1.14 0.58–2.27 0.701
uT factor        
 1 67 ref    ref   
 2 10 3.02 1.43–6.40 0.004 2.15 0.89–5.21 0.089
Circumferential spread        
  < 1/4 45 ref    ref   
 1/4 ≤ 32 1.62 0.90–2.90 0.108 1.30 0.66–2.55 0.447
  1. Abbreviations: HR hazard ratio, CI confidence interval