Summary of included studies for iron deficiency and malaria risk in pregnancy.

ANC: antenatal clinic. CQ: Chloroquine. CTX: Cotrimoxazole. EIR: Entomologic inoculation rate (# infectious bites/person/year). IPTp-SP: Intermittent presumptive treatment in pregnancy with sulfadoxine-pyrimethmine. ITN: Insecticide treated bed net. MiP: malaria in pregnancy. MQ: Mefloquine. PF: Plasmodium falciparum. PV: Plasmodium vivax.
aAuthor contacted and additional information was obtained.
bFerritin <30 ng/mL with CRP< = 8.2 ng/mL or ferritin<70 ng/mL with CRP>8.2 ng/mL.
cSerum ferritin <10 (μg/L) or Erthyrocyte protoporphyrin >70 (μmol/mol heme).
dAuthor contacted and author responded, but no additional information was available.
eSerum ferritin ≤16 ng/mL.
fSelected based on hemoglobin status (<70 g/L, 70–90 g/L, 90–110 g/L, 110–150, and >150).
gSerum ferritin ≤15 ng/mL.
hsTfR:log ferritin ratio >1.6.
ired cell zinc protoporhyrin/heme >2.7 μg/g hemoglobin.