Anemia in pregnancy and its association with pregnancy outcomes in the Arctic Russian town of Monchegorsk, 1973–2002

Chumak, Elena L.; Grijbovski, Andrej M.

doi:10.3402/ijch.v69i3.17603

Cited by 15 publications

(14 citation statements)

References 37 publications

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“…Observational studies published over the past decade [7][8][9] suggested the association between maternal Hb concentration and birth weight: however, findings from some studies are uncertain. [21,29,35,36] However, a recent study has suggested a U-shaped relationship between maternal Hb and birth weight, [10] with contemporary research supporting a potential association between high Hb levels and reduced birth weight. Published reviews of observational studies have certain limitations as mentioned earlier, and no detailed review is published about maternal Hb levels and birth weight.…”

Section: Objectivesmentioning

confidence: 99%

“…Forty-two abstracts were deemed eligible for full-text assessment [ Figure 1]. Nine studies [42][43][44][45][46][47][48][49][50] were excluded after full-text in Asia, [7,8,10,[13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] nine in Africa, [9,[29][30][31][32][33][34][35][36] , one in Europe, [37] two in North America, [38,39] and two in South America. [40,41] Sample size ranged from 50 to 88,149.…”

Section: Overview Of Included Studiesmentioning

confidence: 99%

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Maternal hemoglobin and birth weight: systematic review and meta-analysis

Ahankari¹,

Leonardi‐Bee²

2015

Int J Med Sci Public Health

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Published research showed that maternal iron deficiency affects the health of both mother and child, and further it is likely to be responsible for intrauterine growth reduction, preterm births, cognitive impairments, and nutritional deficiencies. [1,3,4] Hemoglobin (Hb) concentration has been widely used in diagnosing anemia [1] ; however, there have been modern advances such as pregnancy ferritin value or erythrocyte indices being introduced in the last decade for detailed diagnosis. A systematic review published in 2000 studied the association between maternal anemia and birth weight; however, some results were inconclusive. [3] A recent review of randomized controlled trials (RCTs) and cohort studies published in 2013 concluded that daily prenatal iron use substantially improves birth weight in a linear dose-response manner. [4] This review showed that iron intake increases mean Hb concentration, reduces the risk of maternal anemia, and importantly also increases the birth weight. Similarly, another systematic review of RCT of iron supplementation published in 2012 outlined that women with iron supplementations were less likely to have low-birth-weight (LBW) babies (weighing A systematic review published in 2000 studied the association between maternal anemia and birth weight; however, some results were inconclusive. A review of randomized control trials and cohort studies published in 2013 concluded that daily prenatal iron use substantially improves birth weight in a linear dose-response manner. Thus, a systematic review and meta-analysis of observational epidemiological studies was conducted to contemporarily estimate the relationship between prenatal maternal hemoglobin and birth weight. We searched four electronic databases for observational epidemiological studies, which reported birth weight as an outcome measure and ascertained prenatal maternal anemia by hemoglobin measurement. Thirty-three studies met inclusion criteria. Meta-analysis of five studies showed that neonates born to women with anemia were, on average, 303 g lighter in birth weight than those born to women without anemia (95% CI: 19.20-588.26; I ² = 91%; five studies; p = 0.04). On the basis of 17 studies, anemia was found to be significantly associated with doubling the risk of low birth weight (OR: 2.37; 95% CI: 1.66-3.38; I ² = 81%; 17 studies; p < 0.00001), and when restricting the analysis to high study score, a higher magnitude of risk was seen (OR: 3.30; 95% CI: 2.24-4.87; I ² = 48%; 7 studies; p < 0.00001). From a subgroup analysis, it was found (p = 0.02) that anemia in the first and third trimesters was associated with the increased risk of low birth weight. High hemoglobin levels significantly doubled the risk of low birth weight (OR: 1.84; 95% CI: 1.09-3.12; I ² = 62%; seven studies, p = 0.02). Hemoglobin needs to be routinely investigated during pregnancy, and women with low levels of hemoglobin should be treated and those with significantly high levels should be monitored to minimize harmful impact on neonatal health.

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Section: Objectivesmentioning

confidence: 99%

Section: Overview Of Included Studiesmentioning

confidence: 99%

Maternal hemoglobin and birth weight: systematic review and meta-analysis

Ahankari¹,

Leonardi‐Bee²

2015

Int J Med Sci Public Health

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“…14 Indicadores sociais como área de residência, escolaridade e tipo de trabalho influenciaram a prevalência de anemia, assim como influencia a Segurança Alimentar e Nutricional. 15 A pobreza atinge todos os membros do domicílio e a experiência de insegurança alimentar e fome gera preocupação nas mães em relação à nutrição infantil, sentimentos de dor intensa, desamparo e desesperança em relação ao futuro 16 . Isso revela a face interdisciplinar da segurança alimentar e nutricional, pois a mesma abrange aspectos sociais, culturais, psicológicos, políticos, ambientais, nutricionais e de saúde.…”

Section: Discussionunclassified

“…Os resultados mostram que a prevalência de anemia em gestantes tem aumentado ao longo dos anos, 14,15,16,17 e varia conforme o nível de escolaridade, área de residência, tipo de trabalho da mulher, 14 ter ou não parceiro conjugal 18 e idade materna mais jovem. 19 Anemia durante a gestação mostrou influenciar condições de saúde do recém nascido, estando associado com o peso ao nascer acima 14,19,20 ou abaixo do recomendado, 14,21,22,23,24 anemia no recém-nascido, 8 natimortos 19 e restrição do crescimento intra-uterino, 23 sendo considerada fator de risco pré-natal independente para baixo peso ao nascer, assim como menos de 4 consultas e ausência de cuidados no pré-natal, parto prematuro e eclampsia.…”

Section: Métodosunclassified

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Anemia na gestação e peso ao nascer do recém-nascido: Revisão Sistemática

Gonçalves¹,

Priore

Costa

2019

BJD

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Esta revisão objetivou analisar a associação entre anemia materna e peso ao nascer do recém-nascido. Métodos: Foram pesquisadas as bases de dados PubMed, LILACS e Scielo, conforme a metodologia PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses). Identificou-se estudos realizados com mulheres adultas em âmbito mundial, publicados de 2006 a 2016, utilizando os descritores anemia, pregnancy e birth weight e seus semelhantes em português e espanhol. Os artigos selecionados foram lidos por dois avaliadores independentes. Resultados: A prevalência de anemia em gestantes tem aumentado ao longo dos anos, e varia conforme condições socioeconômicas da mulher. Anemia durante a gestação influencia condições de saúde do recém-nascido, está associada com peso ao nascer, anemia no recém-nascido, natimortos e restrição do crescimento intrauterino, sendo considerada fator de risco pré-natal independente para baixo peso ao nascer, assim como ausência de cuidados pré-natal, parto prematuro e eclampsia. Conclusões: Conclui-se que anemia materna é importante causa de resultado adverso na gravidez e merece atenção no cuidado pré-natal. A atenção gestacional deve abranger questões nutricionais e de saúde até aspectos sociais, culturais, econômicos, ambientais e políticos, o que indica a importância de abordagens interdisciplinares e integradas.

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