Subsequently, we explored this SNP in patients with MI and the analysis indicated that the Trp719Arg polymorphism of the KIF6 gene was significantly associated with CHD only in the additive model (Random effects: OR: 1.08, 95 % CI: 1.00–1.16; Q test: 0.69; Egger’s test: 0.10) (Table 3; Figs. 7 and 8). This evidence concerns the gene KIF6 and coronary artery disorder.