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Table 2 Analysis of EFGR mutation

From: Elevated serum CEA levels are associated with the explosive progression of lung adenocarcinoma harboring EGFR mutations

Clinical Characteristic Sample(n) EGFR mutation(n) χ2 P
Gender
 Female 92 47 3.957 0.047
 Male 63 22  
Age
  < 59 74 30 4.230 0.040
59 81 39  
Stage
 I,II 57 21 2.150 0.143
 III,IV 98 48  
PS Score
 0-1 152 68 0.155 0.694
 2-3 3 1  
Smoker
 Ever 63 22 3.957 0.047
 Never 92 47  
CEA
  < 3.4 ng/ml 63 21 5.374 0.020
3.4 ng/ml 92 48  
Cyfra21-1
  < 3.3 ng/ml 64 44 25.920 0.001
3.3 ng/ml 91 25  
  1. A single factor χ2 test showed that EGFR mutation was associated with gender, age, smoking history, and the serological levels of CEA and CYFRA 21-1