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Table 2 Comparison of clinical characteristics between patients with low and high CD133+CXCR4+ cell content.

From: CD133+CXCR4+ colon cancer cells exhibit metastatic potential and predict poor prognosis of patients

  CD133+CXCR4+ cell content   
Clinical factor Low (number = 12) High (number = 17) Total (number = 29) P
Age, years     
   Mean(SD) 64(12.1) 59(11.4)   P = 0.27a
Gender     
   Female 5 8 13 P = 0.28b
   Male 7 9 16  
Location     
   Colon 10 7 17 P = 0.02b
   Rectum 2 10 12  
TNM stagec     
   1 3 2 5 P = 0.02d
   2 6 4 10  
   3 2 3 5  
   4 1 8 9  
T status     
   1 3 4 7 P = 0.39d
   2 2 3 5  
   3 4 4 8  
   4 3 6 9  
N status     
   0 9 7 16 P = 0.06b
   + 3 10 13  
M status     
   0 11 9 20 P = 0.03b
   1 1 8 9  
Grading     
   1 3 2 5 P = 0.20d
   2 4 6 10  
   3 3 4 7  
   4 2 5 7  
Median survival time (day) 710 489 580 P = 0.019d
  1. at test; bFisher's exact test; cTNM is a cancer staging system and was assessed according to the 6th edition of the UICC (International Union against Cancer); dPermutation test. TNM, tumor-node-metastasis.