Abstract
Published evidence concerning association of CYP1A1*2A (MspI) variation with oral carcinoma risk has generated controversial results. Our previous meta-analysis in 2008 failed to reveal a marked association between CYP1A1*2A polymorphism and oral cancer susceptibility. Therefore, updated meta-analyses were conducted. Results suggested significant associations between CYP1A1*2A polymorphisms and oral carcinoma risk for the overall data, inconsistent with our previous meta-analysis. In subgroup analyses by ethnicity, variant C allele might elevate oral cancer susceptibility among Asians but not Caucasians. In conclusion, results suggest that CYP1A1*2A polymorphism might be a low-penetrant risk factor for oral carcinoma, particularly among Asians.
Published Version
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