Blog
About

  • Record: found
  • Abstract: found
  • Article: found
Is Open Access

Prevalência de anemia e determinantes da concentração de hemoglobina em gestantes Translated title: Prevalence of anemia and determinants of hemoglobin concentration in pregnant women

Read this article at

Bookmark
      There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

      Abstract

      Resumo Introdução A anemia é caracterizada pela reduzida concentração de hemoglobina e, durante a gestação, está associada à maior morbimortalidade fetal e materna. Objetivo Avaliar a prevalência de anemia e os fatores determinantes da concentração de hemoglobina em gestantes. Método Estudo transversal com uma amostra de 328 gestantes atendidas nas unidades de saúde urbanas de Vitória da Conquista, na Bahia. Foram realizadas a aplicação de questionário, a avaliação antropométrica e a coleta de sangue por punção capilar para dosagem de hemoglobina em β-hemoglobinômetro portátil. Foram consideradas anêmicas as gestantes com hemoglobina < 11 g/dL. Os determinantes da concentração de hemoglobina sérica foram identificados por meio da regressão linear múltipla. Resultados A prevalência de anemia foi de 18,9%, e a média de hemoglobina, de 11,9 g/dL (desvio-padrão: 1,2). Foram observadas menores médias de concentração de hemoglobina entre as gestantes que iniciaram o pré-natal no segundo trimestre (β: -0,28; IC95%: -0,54 a -0,02) e que não usavam suplemento de ferro (β: -0,51; IC95%: -0,79 a -0,23), enquanto a maior média foi verificada entre as mulheres primigestas (β: 0,34; IC95%: 0,06 a 0,62). Conclusão A anemia nas gestantes avaliadas é um leve problema de saúde pública, e as concentrações de hemoglobina foram associadas aos fatores obstétricos e à assistência pré-natal.

      Translated abstract

      Abstract Background Anemia is characterized by reduced hemoglobin concentration and, during pregnancy is associated with increased fetal and maternal morbidity and mortality. Objective To evaluate the prevalence of anemia and the determinants factors of hemoglobin concentration in pregnant women. Methods Cross-sectional study with a sample of 328 pregnant women patients of the urban Health Units of Vitória da Conquista, Bahia. We applied a questionnaire, anthropometric evaluation, and collected blood by capillary puncture for dosage of haemoglobin using a portable β-hemoglobinometer. Were considered anemic those pregnant women with hemoglobin <11 g/dL. The determinants of serum hemoglobin concentration were identified through multiple linear regression. Results We observed anemia in 18.9% of the participants, and the mean hemoglobin concentration was 11.9 g/dL (standard deviation: 1.2). We observed lower mean of hemoglobin concentration among pregnant women who started prenatal care in the second trimester (β: -0.28; 95% CI: -0.54 to -0.02) and who did not used iron supplementation (β: -0.51, 95% CI: -0.79 to -0.23), while a higher mean was observed among primigavidae women (β: 0.34, 95% CI: 0.06 to 0.62). Conclusion Anemia in the population evaluated is a mild public health problem, and hemoglobin concentrations were associated to obstetric factors and prenatal care.

      Related collections

      Most cited references 15

      • Record: found
      • Abstract: found
      • Article: not found

      Anemia and iron deficiency: effects on pregnancy outcome.

       Lindsay Allen (2000)
      This article reviews current knowledge of the effects of maternal anemia and iron deficiency on pregnancy outcome. A considerable amount of information remains to be learned about the benefits of maternal iron supplementation on the health and iron status of the mother and her child during pregnancy and postpartum. Current knowledge indicates that iron deficiency anemia in pregnancy is a risk factor for preterm delivery and subsequent low birth weight, and possibly for inferior neonatal health. Data are inadequate to determine the extent to which maternal anemia might contribute to maternal mortality. Even for women who enter pregnancy with reasonable iron stores, iron supplements improve iron status during pregnancy and for a considerable length of time postpartum, thus providing some protection against iron deficiency in the subsequent pregnancy. Mounting evidence indicates that maternal iron deficiency in pregnancy reduces fetal iron stores, perhaps well into the first year of life. This deserves further exploration because of the tendency of infants to develop iron deficiency anemia and because of the documented adverse consequences of this condition on infant development. The weight of evidence supports the advisability of routine iron supplementation during pregnancy.
        Bookmark
        • Record: found
        • Abstract: found
        • Article: not found

        Iron deficiency: global prevalence and consequences.

        Iron deficiency is considered to be one of most prevalent forms of malnutrition, yet there has been a lack of consensus about the nature and magnitude of the health consequences of iron deficiency in populations. This paper presents new estimates of the public health importance of iron-deficiency anemia (IDA), which were made as part of the Global Burden of Disease (GBD) 2000 project. Iron deficiency is considered to contribute to death and disability as a risk factor for maternal and perinatal mortality, and also through its direct contributions to cognitive impairment, decreased work productivity, and death from severe anemia. Based on meta-analysis of observational studies, mortality risk estimates for maternal and perinatal mortality are calculated as the decreased risk in mortality for each 1 g/dl increase in mean pregnancy hemoglobin concentration. On average, globally, 50% of the anemia is assumed to be attributable to iron deficiency. Globally, iron deficiency ranks number 9 among 26 risk factors included in the GBD 2000, and accounts for 841,000 deaths and 35,057,000 disability-adjusted life years lost. Africa and parts of Asia bear 71% of the global mortality burden and 65% of the disability-adjusted life years lost, whereas North America bears 1.4% of the global burden. There is an urgent need to develop effective and sustainable interventions to control iron-deficiency anemia. This will likely not be achieved without substantial involvement of the private sector.
          Bookmark
          • Record: found
          • Abstract: found
          • Article: found
          Is Open Access

          Prevalência de anemia ferropriva no Brasil: uma revisão sistemática

          OBJETIVO: Revisar os estudos de prevalência de anemia no Brasil publicados entre janeiro de 1996 e janeiro de 2007. FONTES DE DADOS: Por meio de revisão sistemática nas bases de dados eletrônicas Medline e Lilacs, foram selecionados títulos científicos publicados no intervalo de onze anos referentes à prevalência de anemia no Brasil em crianças menores de cinco anos de idade. Foram excluídos artigos de revisão, relatos de caso e trabalhos que relacionaram anemia a outras doenças e ao período gestacional. Para a análise comparativa das variáveis categóricas de interesse nos artigos encontrados, realizou-se o teste do qui-quadrado e o teste exato de Fisher, levando-se em conta o nível de significância estatística de 5% (p<0,05). SÍNTESE DOS DADOS: Os dados medianos encontrados para a prevalência de anemia foram de 53%, confirmando valores estimados pela Organização Mundial da Saúde e considerados elevados. Nos 53 artigos analisados, a variável que se associou de forma significante à anemia foi a idade da criança (p=0,012). CONCLUSÕES: Os estudos mostram alta prevalência de anemia, principalmente em crianças menores de dois anos. No entanto, os trabalhos foram realizados em creches, visitas domiciliares e Unidades Básicas de Saúde, indicando a necessidade de pesquisas com amostras de base populacional.
            Bookmark

            Author and article information

            Affiliations
            Pelotas Rio Grande do Sul orgnameUniversidade Federal de Pelotas orgdiv1Programa de Pós-graduação em Epidemiologia Brazil
            Vitória da Conquista orgnameUniversidade Estadual do Sudoeste da Bahia orgdiv1Programa de Pós-graduação em Bioquímica e Biologia Molecular Brazil
            São João Del-Rei Minas Gerais orgnameUniversidade Federal de São João del-Rei orgdiv1Faculdade de Medicina Brazil
            Vitória da Conquista Bahia orgnameUniversidade Federal da Bahia orgdiv1Instituto Multidisciplinar em Saúde Brazil
            Juiz de Fora Minas Gerais orgnameUniversidade Federal de Juiz de Fora orgdiv1Faculdade de Nutrição Brazil
            Contributors
            Role: ND
            Role: ND
            Role: ND
            Role: ND
            Role: ND
            Journal
            cadsc
            Cadernos Saúde Coletiva
            Cad. saúde colet.
            Instituto de Estudos em Saúde Coletiva da Universidade Federal do Rio de Janeiro (Rio de Janeiro, RJ, Brazil )
            1414-462X
            2358-291X
            November 2018
            : 26
            : 4
            : 384-390
            S1414-462X2018000400384
            10.1590/1414-462x201800040085

            This work is licensed under a Creative Commons Attribution 4.0 International License.

            Counts
            Figures: 0, Tables: 0, Equations: 0, References: 27, Pages: 7
            Product
            Product Information: SciELO Brazil
            Categories
            Artigos Originais

            Comments

            Comment on this article