Distribution of cardiovascular risk factors by quartiles of PON1-activity adjusted for PON1-192 genotype.

Values are mean (±SD) or number (percentage). Data for C-reative protein, meyloperoxidase and triglycerides are presented as median (±interquartile range). P = p-value for linearity between PON1-192 genotype adjusted PON1-activity quartiles and risk factor levels; R = Pearson's (parametric variables) or Spearman correlation (non-parametric variables e.g. C-reactive protein, meyloperoxidase and triglycerides) between PON1-192 genotype adjusted serum PON1 activity levels and risk factors, and the corresponding p-value (P†). LDL = low-density lipoprotein, HDL = high-density lipoprotein. * indicates p-value by chi square test for dichotomous variables.