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Table 3 Relationship between microsatellite instability status and TS expression, stratified by p53 expression.

From: Inter-relationship between microsatellite instability, thymidylate synthase expression, and p53 status in colorectal cancer: implications for chemoresistance

p53 status MSI status TS status  
   Low High Total
All tumours MSS 153 223 376
  MSI 29 36 65
  Total 182 259 441*
p53 negative tumours MSS 75 80 155
  MSI 21 21 42
  Total 96 101 197**
p53 positive tumours MSS 78 143 221
  MSI 8 15 23
  Total 86 158 244***
  1. *p = 0.59; **p = 0.86; ***p = 1.0; MSS, microsatellite stable; MSI, microsatellite instability; TS, thymidylate synthase