Fig. 4

Correlations between iron absorption and iron status markers. Iron status markers included a) Serum ferritin and b) hepcidin from 21 Asian women participating in the Fe absorption study. Concentrations of serum ferritin and hepcidin were measured in blood obtained 2 weeks after the stable iron isotope was administered. Hepcidin and serum ferritin were transformed by natural logarithm. The black dashed line represents the linear regression line. The correlations were all significant: serum ferritin (p = 0.004, R² = 0.33) and hepcidin (p = 0.009, R² = 0.27)