Figure 2.

Forest plot of the associations of maternal serum ferritin levels during pregnancy with child hemoglobin concentrations (A), child serum ferritin concentrations (B), child transferrin saturation (C), and child soluble transferrin receptor concentrations (D). Random-effect meta-analysis showing the pooled mean difference child hemoglobin concentrations comparing high and low maternal serum ferritin in pregnancy. CI, confidence interval; IV, inverse variation; SF, serum ferritin; DF, degrees of freedom.