All of the statistical analyses for this study were performed with SPSS for Windows software package, version 11.5 (SPSS Inc., Chicago, Illinois, USA). A two-tailed P <0.05 was considered statistically significant. The categorical variables are presented as percentage, whereas the continuous data are presented as the mean ± SD. A Chi-square test was performed to evaluate the allelic and genotypic frequencies that were calculated from the observed genotypic counts. Using Chi-square tests for categorical variables and one-way ANOVA for continuous variables, characteristics of subjects were compared between those with or without MetS and between those with or without the -395A allele, respectively. Because the prevalence of MetS was generally higher in women than in men [16 (link)], we reported the results in men and women, respectively, as well as in the whole population. In addition, odds ratios (OR) and 95 % confidential intervals (CI) for MetS were determined using binary logistic regression models.
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