title: [Anemia and iron deficiency among schoolchildren in the Western Brazilian Amazon: prevalence and associated factors].
abstract: This cross-sectional population-based study investigated prevalence rates and associated factors for anemia, iron deficiency anemia, and iron deficiency among children 6 to 60 months of age in two towns in Acre State, Brazil (N = 624). Hemoglobin, plasma ferritin, and soluble transferrin receptor were measured in venous blood samples. Socioeconomic, demographic, and disease data were obtained using a questionnaire. Prevalence ratios were calculated by Poisson regression in a hierarchical model. Prevalence rates for anemia, iron deficiency anemia, and iron deficiency were 30.6%, 20.9%, and 43.5%, respectively. Children younger than 24 months showed higher risk of anemia, iron deficiency anemia, and iron deficiency. The highest family income tertile was a protective factor against iron deficiency anemia (PR: 0.62; 95%CI: 0.40-0.98). The highest height-for-age quartile was protective against anemia (0.62; 0.44-0.86) and iron deficiency anemia (0.51; 0.33-0.79), and recent history of diarrhea was associated with increased risk of anemia (1.47; 1.12-1.92) and iron deficiency anemia (1.44; 1.03-2.01). Geohelminth infection was associated with increased risk of anemia, iron deficiency anemia, and iron deficiency.
authors.affiliation: Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brasil. tgontijo108@gmail.com
authors.forename: Teresa Gontijo
authors.initials: TG
authors.lastname: de Castro
authors.forename: Mônica
authors.initials: M
authors.lastname: Silva-Nunes
authors.forename: Wolney Lisboa
authors.initials: WL
authors.lastname: Conde
authors.forename: Pascoal Torres
authors.initials: PT
authors.lastname: Muniz
authors.forename: Marly Augusto
authors.initials: MA
authors.lastname: Cardoso
mesh_terms: D000740:Anemia / Q000453:epidemiology*; D018798:Anemia, Iron-Deficiency / Q000453:epidemiology; D001938:Brazil / Q000453:epidemiology; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D007223:Infant; D000090463:Iron Deficiencies; D008297:Male; D015995:Prevalence; D012307:Risk Factors; D012959:Socioeconomic Factors