Fig. 2From: Association between MTHFR C677T variant and risk for congenital heart defects in Egyptian children: a case–control study including meta-analysis based on 147 cases and 143 controlsThe ORs with its 95% CIs for the MTHFR C667T in children for congenital heart defects according to allele frequency T versus C. Random-effects pooled OR = 1.89, 95%CI = 1.31–2.74, P = 0.0004, Pheterogeneity = 0.001, I2 = 97.4%Back to article page