Fig. 4.
Changes in body iron in a trial of iron supplementation in pregnant Jamaican women.
A control group received no additional iron, an FeSO4 group received 100 mg iron daily, and a GDS group received 50 mg iron daily. Body iron was calculated from the ratio of serum transferrin receptor to serum ferritin. Positive values and the clear area represent storage iron, whereas negative values and the shaded area indicate tissue iron deficiency. Vertical bars represent ± 1 SEM.
