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Table 1 Distribution of age and gender in EC patients and controls

From: IL-1B rs2853550 polymorphism contributes to esophageal cancer susceptibility in Chinese Han population of Northwest China

Variable Cases (n) % Controls (n) % p value
Total 384   499   
Gender      <  0.01a
Female 76 19.7 198 39.7  
Male 308 80.3 301 60.3  
Mean Age (years) 60.81   51.47   < 0.01b
Standard Deviation 8.84   11.84   
  1. pa-value: p-value obtained using χ2 test
  2. pb-value: p-value obtained from independent sample t-test