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Table 2 Comparison between CEA* mRNA and serum CEA in predicting recurrence

From: Detection of carcinoembryonic antigen messenger RNA in blood using quantitative real-time reverse transcriptase-polymerase chain reaction to predict recurrence of gastric adenocarcinoma

  CEA mRNA Serum CEA
Positive Negative Positive Negative
Recurrence Yes 25 19 14 30
  No 20 59 16 63
P 0.001 0.152
X 2 12.088 2.050
Sensitivity (%) 56.8 31.8
Specificity (%) 74.7 79.7
  1. * Carcinoembryonic antigen