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Table 1 Patient characteristics

From: Whole brain radiotherapy plus simultaneous in-field boost with image guided intensity-modulated radiotherapy for brain metastases of non-small cell lung cancer

Characteristics No. of patients(%)
Gender  
  Male 20 (68.97)
  Female 9 (31.03)
Age(years)  
  Median 58
  Range 36-75
  ≥60 13 (44.83)
  <60 16 (55.17)
KPS scores  
  ≥70 19 (65.52)
  <70 10 (34.48)
Pathology  
  Adenocarcinoma 18 (62.07)
  Non-adenocarcinoma 11 (37.93)
RPA class  
  2 19 (65.52)
  3 10 (34.48)
SIR scores  
  ≤5 13 (44.83)
  >5 16 (55.17)
GPA scores  
  0-1 13 (44.83%)
  1.5-2 11 (37.93%)
  2.5-3 3 (10.34%)
  3.5 2 (6.90%)
History of EGFR-TKI treatment  
  Yes 11 (37.93)
  No 18 (62.07)
Number of lesions  
  Mean 3
  <3 15 (51.72)
  ≥3 14 (48.28)
Maximum lesion volume  
  <3 cc 12 (41.38)
  ≥3 cc 17 (58.62)
Total volume of lesions  
  <7 cc 15 (51.72)
  ≥7 cc 14 (48.28)
Total 29
  1. Abbreviations: KPS = Karnofsky performance status; RPA = recursive partitioning analysis; SIR = score index for radiosurgery in brain metastases; GPA = graded prognostic assessment; EGFR-TKI = epidermal growth factor receptor tyrosine kinase inhibitor.