Maternal hemoglobin and iron status in early pregnancy and risk of respiratory tract infections in childhood: A population-based prospective cohort study.
Hugo G Quezada-PinedoEvelien R van MeelIrwin K ReissVincent JaddoeMarijn J VermeulenLiesbeth DuijtsPublished in: Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology (2023)
High maternal ferritin and low transferrin saturation concentrations during early pregnancy were most consistently associated with an overall increased risk of child's upper, not lower, respiratory tract infections.