Genetic impact on the association between Ery-Hg and MI risk. Risk of MI (OR) with 95% CI for different genotypes in the Ery-Hg tertiles. The reference group is the most common homozygote in the lowest Ery-Hg tertile. ORs are adjusted for smoking and ApoB/ApoA1 ratio. The tertile boundaries are 0-2.81, 2.82-4.79, and 4.83-87 μg/l. a Number of individuals in each group. bNumber of variant alleles.