Figure 2. Interaction between rs13382811 and rs6469937 in a Han Chinese population under a recessive model. Individuals are grouped by the presence of the homozygous risk genotypes and compared with risks with at least one protective allele for rs13382811 (risk allele = T, protective allele = C) or rs6469937 (risk allele = G, protective allele = A). The odds ratios (ORs) are given relative to those samples with at least one protective allele for both markers.