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Table 3 Results of univariate analysis for LC, PFS, OS, and LPFS

From: High-dose stereotactic body radiotherapy using CyberKnife® for stage I peripheral lung cancer: a single-center retrospective study

Characteristics Patients (n) 2-year LC (%) p value 2-year PFS (%) p value 2-year OS (%) p value 2-year LPFS (%) p value
Age (years)
  > 75 45 97 0.822 83 0.793 85 0.454 86 0.663
  ≤ 75 51 96   84   94   90  
Sex
 Male 61 95 0.815 75 0.052 86 0.353 84 0.684
 Female 35 100   100   97   97  
T classification
 T1a/T1b 61 100 0.044 95  < 0.001 98  < 0.001 98  < 0.001
 T1c/T2a 35 96   65   76   72  
History of lung surgery
 Yes 29 96 0.939 82 0.883 88 0.689 85 0.841
 No 67 97   85   91   90  
History of ischemic heart disease
 Yes 24 100 0.128 92 0.402 90 0.920 90 0.497
 No 72 95   82   90   87  
Histological diagnosis
 Yes 21 88 0.277 67 0.002 89 0.123 79 0.049
 No 75 90   88   98   91  
Operability
 Operable 25 100 0.226 85 0.786 96 0.747 96 0.411
 Inoperable 71 95   83   88   86  
  1. LC local control, PFS progression-free survival, OS overall survival, LPFS local progression-free survival