title: Quantitative assessment of the influence of common variations on 6p21 and lung cancer risk.
abstract: Genome-wide association studies have identified 6p21 as a new lung cancer susceptibility locus in populations of European descent. Since then, the relationship between common variations on 6p21 and lung cancer has been reported in various ethnic groups; however, these studies have yielded inconsistent results. To investigate this inconsistency, we performed a meta-analysis of 11 studies involving a total of 36,890 cases and 52,767 controls for three widely studies polymorphisms (rs4324798, rs3117582, and rs9295740) to evaluate its effect on genetic susceptibility for lung cancer. An overall random-effects per-allele odds ratio (OR) of 1.11 (95% confidence interval (CI) 1.04–1.19; P = 0.002) and 1.20 (95% CI 1.14–1.26; P < 10(−5)) was found for the rs4324798 and rs3117582 polymorphism, respectively. Marginal significant associations were also detected for rs9295740 with per-allele OR of 1.09 (95% CI 1.01–1.18; P = 0.03). In the subgroup analysis by ethnicity, significantly increased risks were found for the three polymorphisms among Caucasians. Similar results were also observed using dominant or recessive genetic models. This meta-analysis demonstrated that the three common variations (rs4324798, rs3117582, and rs9295740) on 6p21 are risk factors associated with increased lung cancer susceptibility, but these associations vary in different ethnic populations.
authors: Jicheng
authors: J
authors: TanTai
authors: Yuzhou
authors: Y
authors: Shen
authors: Heng
authors: H
authors: Zhao
mesh_terms: D016022:Case-Control Studies; D002896:Chromosomes, Human, Pair 6; D020022:Genetic Predisposition to Disease; D014644:Genetic Variation; D006801:Humans; D008175:Lung Neoplasms / Q000208:ethnology / Q000235:genetics*; D016017:Odds Ratio; D020641:Polymorphism, Single Nucleotide; D017594:Publication Bias; D012306:Risk
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