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Table 3 Combined genotype analysis of GSTM1 and GSTT1 on risk of gastric cancer

From: Glutathione S-transferase gene GSTM1, gene-gene interaction, and gastric cancer susceptibility: evidence from an updated meta-analysis

GSTM1 genotyping GSTT1 genotyping Cases (n = 5072) Control (n = 5775) OR (95% CI) POR
Present Present 1315 1762 1  
  Null 1024 1126 1.107(0.980-1.251) 0.102
Null Present 1461 1736 1.134(0.969-1.328) 0.117
  Null 1272 1151 1.505(1.165-1.944) 0.002