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vol.33 número2Prevalence of anemia in under five-year-old children in a children's hospital in Recife, Brazil índice de autoresíndice de assuntospesquisa de artigos
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Revista Brasileira de Hematologia e Hemoterapia

versão impressa ISSN 1516-8484


SALES, Márcia Cristina; QUEIROZ, Everton Oliveira de  e  PAIVA, Adriana de Azevedo. Association between anemia and subclinical infection in children in Paraíba State, Brazil. Rev. Bras. Hematol. Hemoter. [online]. 2011, vol.33, n.2, pp.96-99. ISSN 1516-8484.

BACKGROUND: With subclinical infection, serum iron concentrations are reduced, altering the synthesis of hemoglobin, the main indicator of anemia. OBJECTIVE: To evaluate the association between subclinical infection and anemia in children of Paraíba State. METHODS: This is a cross-sectional study involving 1116 children aged 6 to 59 months from nine municipalities of Paraíba State. Demographic and socioeconomic data were collected by means of a specific questionnaire. The C-reactive protein and hemoglobin levels were determined by the latex agglutination technique and automated counter, respectively. C-reactive protein values > 6 mg/L were used as indicative of subclinical infection, while the presence of anemia was determined by hemoglobin values < 11.0 g/dL. The data were analyzed using the Epi Info computer program, with significance being set at 5%. RESULTS: Data from this research showed that 80.1% of the children belonged to families that were below the bread line, with per capita income < ½ of the minimum wage at that time (R$ 350.00 approximately US$ 175.00). The prevalences of subclinical infection and anemia were 11.3% and 36.3%, respectively. Subclinical infection was significantly associated with anemia (p-value < 0.05). There were lower levels of hemoglobin in children with C-reactive protein > 6 mg/L, with a mean hemoglobin level in children with subclinical infection of 10.93 g/dL (standard deviation - SD = 1.21 g/dL) and without infection of 11.26 g/dL (SD = 1.18 g/dL) (p-value < 0.05). CONCLUSION: Anemia is associated with subclinical infection in this population, indicating that this is an important variable to be considered in studies of the prevalence of anemia in children.

Palavras-chave : Infection; Hemoglobin; Anemia; Child; Public health.

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