Maternal anemia and birth weight: A prospective cohort study

Abstract

ObjectiveTo investigate the association between maternal anemia and low/insufficient birth weight.DesignA prospective cohort study of pregnant women who underwent prenatal care at the healthcare units in a municipality of northeast Brazil together with their newborn infants was carried out. The pregnant women were classified as having anemia when the hemoglobin level was below 11 g/dl. Infants who were born full term weighing less than 2500 grams were classified as low birth weight, and those weighing between 2500 and 2999 grams were classified as insufficient weight. The occurrence of maternal anemia and its association with birth weight was verified using crude and adjusted Relative Risk (RR) estimates with their corresponding 95% confidence intervals (95%CIs).ResultsThe final sample was comprised of 622 women. Maternal anemia was considered a risk factor for low/insufficient birth weight, after adjusting the effect measurement for maternal age, family income, urinary infection, parity, alcoholic beverage consumption during pregnancy and gestational body mass index: RRadjusted = 1.38 [95% CI: 1.07 to 1.77].ConclusionsMaternal anemia was associated with low/insufficient birth weight, representing a risk factor for the gestational outcomes studied.

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“…31 There are a substantial amount of studies that have evidenced that babies born to anemic mothers had lower birth weights compared to those born to non-anemic mothers. 32 In our study, the mean birth weight of the intervention group was higher compared to that of the control group (p-value <0.005). There were three lowbirth-weight (<2500 gram) babies in the control group.…”

Educação em saúde para o controle de Aedes aegypti

“…Na Região Nordeste, Figueiredo et al (2019) avaliaram a associação entre anemia materna e baixo ou insuficiente peso ao nascer em 622 mulheres. Concluíram que a anemia materna foi considerada fator de risco para baixo ou insuficiente peso ao nascer, após ajuste da medida de efeito para idade materna, renda familiar, infecção urinária, paridade, consumo de bebida alcoólica durante a gravidez e índice de massa corporal gestacional: RR ajustado = 1,38 (IC 95%: 1,07 a 1,77).…”

Resultados perinatales de la anemia en la gestación

“…No se pudo concluir que la anemia se asocie con algún grado de vulnerabilidad de los niños al ingresar a la escuela y que los predisponga a déficit cognitivo (44) . Existe evidencia en el mismo sentido por la predisposición de asfixia perinatal y enfermedad de membrana hialina en recién nacidos de madres con anemia no tratada o identificada de forma oportuna en niños con peso bajo al nacer de madres anémicas (45) .…”