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Table 1 Clinical characteristics of the participants

From: Genetic variations in PRKAA1 predict the risk and progression of gastric Cancer

Variables Cases, n (%) Controls, n (%) p-Value
Total 481 490  
Age (mean ± SD) 65.55 ± 11.92 64.85 ± 11.83 0.694a
 >60 168 167 0.782b
  ≤ 60 313 323  
Gender
 Male 354(73.60) 359(73.27) 0.907 b
 Female 127(26.40) 131(26.73)  
Drinking
 Yes 53(11.02) 47(9.59) 0.465 b
 No 428(88.98) 443(90.41)  
Smoking
 Yes 111(23.08) 119(24.29) 0.658 b
 No 370(76.92) 371(75.71)  
Helicobacter pylori infection status
 Positive 262(54.47) 241(49.18) 0.099 b
 Negative 219(45.53) 249(50.81)  
Differentiation
 Low 195(40.54)   
 Med and high 286(59,46)   
Clinical stages
 T1-T2 159(33.06)   
 T3-T4 322(66.94)   
Tumor Site
 GCA 140(29.11)   
 NGCA 341(70.89)   
  1. GCA gastric cardiac adenocarcinoma, NGCA non-gastric cardiac adenocarcinoma
  2. aIndependent t-test. bTwo-sided χ2 test for distributions between cases and controls