FS Control p value*
Esophagitis Grade 1-4 4 6 0.56
  Grade 0 3 1  
  Grade 1 1 2  
  Grade 2 3 4  
  Grade 3 0 0  
  Grade 4 0 0  
Pneumonitis Grade 1-4 0 3 0.19
  Grade 0 7 4  
  Grade 1 0 0  
  Grade 2 0 3  
  Grade 3 0 0  
  Grade 4 0 0  
* P-value calculated by Fisher's exact test (2-sided)
Table 2B: Esophagitis and pneumonitis rates in FS and control groups.