@article{fdi:010064781, title = {{P}renatal hemoglobin levels and early cognitive and motor functions of one-year-old children}, author = {{M}ireku, {M}. {O}. and {D}avidson, {L}. {L}. and {K}oura, {G}. {K}. and {O}uedraogo, {S}. and {B}oivin, {M}. {J}. and {X}iong, {X}. and {A}ccrombessi, {M}. {M}. {K}. and {M}assougbodji, {A}. and {C}ot, {M}ichel and {B}odeau-{L}ivinec, {F}.}, editor = {}, language = {{ENG}}, abstract = {{OBJECTIVE}: {T}o explore the relationship between prenatal hemoglobin ({H}b) concentration and infant cognitive and motor functions. {METHODS}: {O}ur prospective cohort study included 1-year-old children born to women enrolled at their first antenatal care ({ANC}) visit in {A}llada, {B}enin, before 29 weeks of pregnancy, within a trial comparing the efficacy of sulfadoxine-pyrimethamine and mefloquine. {H}b concentrations of pregnant women were determined from venous blood samples collected at first and second {ANC} visits of at least 1-month interval and at delivery. {W}omen were prescribed oral iron, folic acid, and anthelminthics after the first {ANC} visit. {A} total of 636 children (76.8% of eligible children) were assessed by trained research nurses for cognitive and motor functions by using the {M}ullen {S}cales of {E}arly {L}earning. {RESULTS}: {P}revalence of anemia ({H}b, 110 g/{L}) decreased from 67.0% at first {ANC} visit (mean gestational age [{SD}], 22.1 [4.0] weeks) to 38.4% at delivery. {M}ean ({SD}) {H}b concentrations increased from 103.7 (12.3) at first {ANC} visit to 112.4 (14.1) at delivery. {W}e observed a significant negative quadratic relationship between infant gross motor ({GM}) function and {H}b concentration at first and second {ANC} visits. {T}hus, infant {GM} scores increased sharply with increasing maternal {H}b concentration until 90 g/{L} where increasing {GM} was mild, and began to decline after 110 g/{L}. {CONCLUSIONS}: {T}here appears to be an {H}b concentration range that may be optimal for {GM} function of 1-year-old children. {T}his may reflect the importance of physiologic hemodilution, which occurs after the second trimester until 34 weeks of gestation.}, keywords = {{BENIN}}, booktitle = {}, journal = {{P}ediatrics}, volume = {136}, numero = {1}, pages = {{E}76--{E}83}, ISSN = {0031-4005}, year = {2015}, DOI = {10.1542/peds.2015-0491}, URL = {https://www.documentation.ird.fr/hor/fdi:010064781}, }