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Table 3 Predictors of OS according to multivariate analysis

From: Prognostic significance of postoperative serum carcinoembryonic antigen levels in patients with completely resected pathological-stage I non-small cell lung cancer

Risk factors HR 95% CI p valuea
Age    
  ≤70 y 1 Reference  
  >70 y 2.29 0.87–6.72 0.095
ECOG PS    
  0 1 Reference  
  1 1.33 0.47–3.53 0.59
Tumor diameter    
  ≤30 mm 1 Reference  
  >30 mm 3.47 1.35–8.98 0.010
VPI    
  Absent 1 Reference  
  Present 3.18 1.11–8.84 0.032
ALI    
  Absent 1 Reference  
  Present 1.06 0.38–3.15 0.91
Differentiation    
  Well 1 Reference  
  Moderate/Poor 1.14 0.42–3.01 0.80
Serum CEA    
  NN group 1 Reference  
  HN group 2.52 0.72–8.11 0.14
  HH group 7.69 2.46–23.7 < 0.001
  1. OS, Overall survival; HR, Hazard ratio; CI, Confidence interval; ECOG PS, European cooperative oncology group performance status; VPI, Visceral pleural invasion; ALI, Angiolymphatic invasion; CEA, Carcinoembryonic antigen.
  2. a the log-rank test.