Genetic Association between Methylenetetrahydrofolate Reductase Gene Polymorphism and Risk of Osteonecrosis of the Femoral Head

Figure 2

Meta-analysis using a fixed effects model for the association between MTHFR SNP rs1801133 and ONFH susceptibility (TT/CT versus CC) is illustrated in analysis stratified by ethnicity. OR: odds ratio; CI: confidence interval.