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Table 5 Recurrence-free survival and clinicopathological characteristics

From: Prognostic impact of vascular invasion and standardization of its evaluation in stage I non-small cell lung cancer

Variables   No. RFP (%) Univariate P value
All   335 92.3  
Age (years) ≥65 178 94.4 0.3224
  <65 157 90.1  
Sex Male 164 91.2 0.3002
  Female 171 93.5  
Smoking status Smoker 165 94.5 0.1013
  Non-smoker 170 90.4  
PL (−) 299 94.5 <0.0001
  (+) 36 74.6  
BVI Negative (0 or 1) 298 96.2 <0.0001
  Positive (≥2) 37 62.2  
LVI Negative (0) 284 94.6 0.0001
  Positive (≥1) 51 79.7  
TVI (−) 262 97.3 <0.0001
(+) 73 74.6
  1. PL, pleural invasion; BVI, blood vessel invasion; LVI, lymphatic vessel invasion; TVI, tumor vessel invasion.