FAS and cancer: When studies were stratified according to ethnicity, there was a significantly decreased association between the FAS-1377G/A SNP and cancer susceptibility in Asians (OR = 0.87, 95% CI = 0.77-0.98, Pheterogeneity = 0.001, P = 0.020 for GG vs. AA and OR = 0.86, 95% CI = 0.77-0.95, Pheterogeneity = 0.002, P = 0.004 for GG+GA vs. AA) (Table 1).