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Table 1 Tumor and treatment characteristics

From: A multi-center analysis of single-fraction versus hypofractionated stereotactic radiosurgery for the treatment of brain metastasis

  SF-SRS [n = 222 (%)] HF-SRS [n = 113 (%)] Unadjusted p-value Adjusted p-value
Tumor location    0.64 0.82
 Supratentorial 172 (78) 82 (73)   
 Infratentorial 50 (22) 31 (27)   
Tumor size    < 0.001 0.01
  ≤ 2 cm 199 (90) 71 (63)   
  > 2 cm 23 (10) 42 (37)   
Histology    0.07 0.07
 Renal Cell 23 (10) 5 (4)   
 Melanoma 18 (8) 14 (12)   
 Squamous Cell 6 (3) 12 (11)   
 Adenocarcinomaa 148 (67) 60 (53)   
 Other 27 (12) 22 (20)   
Surgical resection    0.005 0.02
  8 (4) 18 (16)   
Prior WBRT    0.61 0.30
  74 (33) 38 (34)   
Concurrent systemic therapy    0.02 0.72
  73 (33) 18 (16)   
  1. WBRT whole brain radiation therapy
  2. aAdenocarcinoma includes adenocarcinoma of the lung and invasive ductal carcinoma of the breast