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Table 2 Meta-analysis of the GSTP1 rs1695 A/G polymorphism

From: Glutathione S-transferase pi 1 variant and squamous cell carcinoma susceptibility: a meta-analysis of 52 case-control studies

Statistical analysis Index Allele Carrier Homozygote Heterozygote Dominant Recessive
Association OR 0.99 0.99 1.02 0.96 0.97 1.03
  95% CIs 0.95~1.03 0.94~1.03 0.93~1.12 0.91~1.02 0.92~1.03 0.94~1.12
  P a 0.601 0.587 0.689 0.167 0.289 0.548
Sample size case 9763 9763 9763 9763 9763 9763
  control 15,028 15,028 15,028 15,028 15,028 15,028
  study 52 52 52 52 52 52
Heterogeneity I2 15.5% 0.0% 9.7% 7.7% 11.8% 1.2%
  P h 0.174 0.999 0.278 0.318 0.239 0.450
  Model Fixed Fixed Fixed Fixed Fixed Fixed
Egger’s test t 1.14 1.38 0.13 2.36 2.16 −0.31
  P E 0.259 0.175 0.899 0.022 0.036 0.760
Begg’s test z 0.53 0.84 0.77 1.96 1.82 1.29
  P B 0.597 0.398 0.444 0.049 0.068 0.198
  1. OR odds ratio, CIs confidence intervals, Pa, P value of association test, Ph, P value of heterogeneity test, PE, P value of Egger’s test, PB, P value of Begg’s test