|   | 
          | 
        No. (%) | 
       
      
        | Sex | 
        Male | 
        29 (50) | 
       
      
        |   | 
        Female | 
        29 (50) | 
       
      
        | Age | 
        Mean | 
        81.4 | 
       
      
        |   | 
        Median | 
        83.0 | 
       
      
        | Race | 
        Caucasian | 
        47 (81) | 
       
      
        |   | 
        Other | 
        11 (19) | 
       
      
        | Smoking Status | 
        Active Smoker | 
        15 (25.8) | 
       
      
        |   | 
        Ex-Smoker | 
        34 (58.6) | 
       
      
        |   | 
        Never Smoker | 
        5 (8.6) | 
       
      
        |   | 
        Unknown | 
        4 (6.8) | 
       
      
        | Disease Status at Follow-up | 
        No evidence of disease | 
        26 (44.8) | 
       
      
        |   | 
        Recurrent disease | 
        30 (51.7) | 
       
      
        |   | 
        Unknown  | 
        2 (3.4) | 
       
      
        | Cause of Death (n=46) | 
        Death from lung cancer | 
        27 (58.7) | 
       
      
        |   | 
        Death from other cancer | 
        2 (4.3) | 
       
      
        |   | 
        Death from other causes | 
        14 (30.4) | 
       
      
        |   | 
        Unknown | 
        3 (6.5) | 
       
      
        | Tumor Histology | 
        Adenocarcinoma | 
        23 (36.2) | 
       
      
        |   | 
        Squamous Cell | 
        21 (36.2) | 
       
      
        |   | 
        Large Cell | 
        3 (6.4) | 
       
      
        |   | 
        Other NSCLC | 
        11 (18.9) | 
       
      
        | Tumor Stage | 
        IA | 
        23 (39.6) | 
       
      
        |   | 
        IB | 
        35 (60.3) | 
       
      
        | Tumor Grade (Differentiation) | 
        Poor | 
        30 (51.7) | 
       
      
        |   | 
        Well to Moderate | 
        25 (43.1) | 
       
      
        |   | 
        Unknown | 
        3 (5.2) | 
       
      |