HAMP and malaria: Children with SMA had lower hepcidin/ferritin ratios (0.10 [IQR 0.03, 0.19]) than those with CM (0.24 [0.14, 0.69]; P=0.006) or asymptomatic malaria (0.19 [0.09, 0.46]; P=0.01) indicating suppressed hepcidin levels.