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Table 2 Significance of IL-6 expression stratified according to the occurrence of local- regional failure (LR) or distant metastasis (DM) in 71 patients

From: IL-6 expression predicts treatment response and outcome in squamous cell carcinoma of the esophagus

  IL-6 serum level  
  <mean > = mean  
LR + 12 32 P = 0.001
- 18 9
DM + 10 24 P = 0.035
  - 20 17  
  1. LR = Local-regional Recurrence /persistent; DM = distant metastasis.