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Table 2 Correlations between SIRT1, VEGF-C, LVD and LVI

From: SIRT1 expression is associated with lymphangiogenesis, lymphovascular invasion and prognosis in pN0 esophageal squamous cell carcinoma

Variables SIRT1 P VEGF-C P LVD P LVI P
Negative (n = 111) Positive (n = 95) Negative (n = 99) Positive (n = 107) Low (n = 123) High (n = 83) Negative (n = 135) Positive (n = 71)
VEGF-C    0.015    -       
  Negative 62 37   - -        
  Positive 49 58   - -        
LVD    0.013    0.005    -    
  Low 75 48   69 54   - -     
  High 36 47   30 53   - -     
LVI    0.015    0.007    0.027    
  Negative 81 54   74 61   88 47   - - -
  Positive 30 41   25 46   35 36   - -  
  1. LVD: lymphatic microvessel density.
  2. LVI: lymphovascular invasion.