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Table 1 Clinical and treatment characteristics of patients

From: Predictive factors of radiation-induced skin toxicity in breast cancer patients

  Total MRM BCS P value
Patients (No) 158 90 68  
Age     
   Mean±SD (y/o) 50 ± 11 56 ± 11 48 ± 10  
   Range 24-86 26-86 24-78  
Acute skin toxicity     
   Grade 2 34 23 11 0.27
   Grade 3 3 1 2  
CTV     
   Volume (c.c) 192 ± 59 169 ± 53 226 ± 63  
   D mean (Gy) 53.2 53.1 53.3  
   D median (Gy) 53.9 54.5 53.5  
   V100% (%) 98 98 99  
PTV     
   Volume (c.c) 413 ± 113 345 ± 102 504 ± 124  
   D mean (Gy) 52.5 52.5 52.5  
   D median (Gy) 53.1 53.0 53.0  
   V100% (%) 94 93 95  
PTV-V 107 (Median; cc) 101 81 132  
PTV-V 107% ,     
   Median (%) 28.6 24.5 31.5  
   >Median (28.6) (No) 79 40 39  
   < = Median (No) 79 50 29 0.11
TV-V 110 (Median; cc) 35 32 36  
TV-V 110%     
   Median (%) 5.13 5.59 4.37  
   >Median (5.13) (No) 79 48 31  
   < = Median (No) 79 42 37 0.33
  1. Abbreviation: MRM= modified radical mastectomy, BCS= breast-conserving surgery Dmean = mean received dose for target; Dmedian = median received dose for target
  2. V100% = percent volume receiving the prescribed dose
  3. PTV-V107% = percent volume receiving 107% of prescribed dose within PTV
  4. Treated volume (TV) = the tissue volume which received the prescribed dose
  5. TV-V110% = percent volume receiving 110% of prescribed dose within TV
  6. Data are presented as mean with standard deviation