| Variable | 
        Survival | 
        Odd Ratio (95%    Confidence interval) | 
        P-value | 
       
      
        |    | 
        Alive(n= 26) | 
        Dead (n=14) | 
           | 
           | 
       
      
        | Age | 
       
      
        | <60  | 
        10  | 
        4  | 
        1.13(0.70-1.81)  | 
        0.73  | 
       
      
        | ≥ 60  | 
        16  | 
        10  | 
       
      
        | Sex | 
       
      
        | Female  | 
        7  | 
        3  | 
        0.92(0.52-1.62)  | 
        0.76  | 
       
      
        | Male  | 
        19  | 
        11  | 
       
      
        | Pathology | 
       
      
        | Squamous  | 
        12  | 
        6  | 
        1.08(0.69-1.72)  | 
        0.76  | 
       
      
        | Adenocarcinoma  | 
        14  | 
        8  | 
       
      
        | Stage | 
       
      
        | I+II  | 
        7  | 
        0  | 
        1.82(1.33-2.51)  | 
        0.03  | 
       
      
        | III+IV  | 
        19  | 
        14  | 
       
      
        | Performance status | 
       
      
        | <2  | 
        20  | 
        5  | 
        1.98(1.03-3.80)  | 
        0.01  | 
       
      
        | ≥2  | 
        6  | 
        9  | 
       
      
        | Baseline CYFRA-21-1 | 
       
      
        | ( <5.3 vs.≥ 5.3)  | 
        14  | 
        5  | 
        1.71(0.69-4.15)  | 
        0.32  | 
       
      
        |    | 
        12  | 
        9  | 
       
      
        | CYFRA-21 after treatment | 
       
      
        | (<10.4 vs. ≥ 10.4)  | 
        19  | 
        0  | 
        3.0(1.64-5.49)  | 
        0.001  | 
       
      
        |    | 
        7  | 
        14  | 
       
      
        | Baseline CEA  | 
       
      
        | (< 5.5 vs.≥ 5.5)  | 
        14  | 
        4  | 
        2.14(0.81-5.67)  | 
        0.18  | 
       
      
        |    | 
        12  | 
        10  | 
       
      
        | CEA after treatment | 
       
      
        | ( <9.3 vs.≥ 9.3)  | 
        20  | 
        1  | 
        3.01(1.54-5.88)  | 
        0.001  | 
       
      
        |    | 
        6  | 
        13  | 
       
      |