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Table 3 Pooled OR of the OGG1 Ser326Cys polymorphism based on different types of cancer

From: Association between OGG1 Ser326Cys polymorphism and risk of upper aero-digestive tract and gastrointestinal cancers: a meta-analysis

Type of cancer No. of studies Case/Control Dominant model Recessive model Homozygous model
OR (95 % CI) Pa OR (95 % CI) Pa OR (95 % CI) Pa
Head and neck 6 1479/1589 1.3 (0.99–1.73) <0.05* 1.37 (1.09–1.73) 0.007* 1.69 (1.06–2.68) 0.02*
Gastric 3 450/908 0.9 (0.71–1.14) 0.39 0.78 (0.47–1.29) 0.34 0.76 (0.45–1.27) 0.3
Colorectal 5 2479/3130 1.29 (0.9–1.84) 0.15 1.34 (1.05–1.71) 0.01* 1.38 (1.08–1.77) 0.009*
  1. aP heterogeneity
  2. * Significant at P < 0.05