|   Age  |       
  |    
|   Median  |       73 (55 - 87)  |    
|   Stage  |       
  |    
|   II  |       4  |    
|   IIIA  |       11  |    
|   IIIB  |       7  |    
|   TNM  |       
  |    
|   T1/2/3/4/x  |       3/5/8/5/1  |    
|   N0/1/2/3  |       6/3/10/3  |    
|   Staging PET  |       
  |    
|   Yes  |       21  |    
|   No  |       1  |    
|   Mediastinal Staging  |       
  |    
|   Imaging  |       13  |    
|   Surgical  |       7  |    
|   Other  |       2  |    
|   Histology  |       
  |    
|   Adenocarcinoma  |       12  |    
|   Squamous  |       6  |    
|   NOS  |       4  |    
|   KPS  |       
  |    
|   90  |       11  |    
|   80  |       6  |    
|   70  |       4  |    
|   60  |       1  |    
|   RT Dose/BED Gy10  |       
  |    
|   70 Gy/84  |       9  |    
|   66 Gy/79.2  |       9  |    
|   60 Gy/72  |       4  |    
|   RT technique  |       
  |    
|   VMAT1  |       18  |    
|   Static  |       4  |    
|   Neoadjuvant Chemo  |       
  |    
|   Yes  |       5  |    
|   No  |       17  |    
|   Concurrent Chemo  |       
  |    
|   Yes  |       21  |    
|   No  |       1  |    
|   Consolidation Chemo  |       
  |    
|   Yes  |       7  |    
|   No  |       14  |    
|   Unknown  |       1  |