Analysis of association between MMP-1 SNPs and the risk of occurrence of gastric cancer.

Adjusted OR calculated for age, sex and addiction, by binary logistic regression model using SPSS v16.0 software. P value is for χ2 test showing the significance of difference in the distributions of the genotypes and alleles between patients and controls. OR = Odds ratio, CI = Confidence Interval, Ref = Reference genotype or allele to calculate OR.