title: [Magnitude, time trends and factors associate with anemia in children in the state of Paraíba, Brazil].
abstract: OBJECTIVE
  To estimate the magnitude of the anemia, to analyze the time trends and investigate the factors associated with this disturbance in children in the state of Paraíba, Brazil.
  
  
  METHODS
  A cross-sectional survey, of population-based, with 1108 children, aged 6 to 59 months, both sexes in the state of Paraíba. Hemoglobin (Hb) in venous blood was analyzed with an automatic counter. The social-economic and demographic characteristics of children were obtained by questionnaire. Proportions were compared by Pearson's chi-squared test, and the association between hemoglobin concentrations and potential risk factors was tested by regression model Poisson. The time trend of anemia was assessed by the increase/decreased in the prevalence of anemia, using as comparison the prevalence observed in the years 1982, 1992 and 2007.
  
  
  RESULTS
  The prevalence of anemia (Hb < 11.0 g/dl) in the state of Paraíba was 36.5% (CI95% 33.7 to 39.3). It was observed that 1.3% (CI95% 0.7 to 1.8) were in severe form (Hb <7.0 g/dl), 11% (CI95% 9.4 to 13.5) in a moderate form and 87.6% (CI95% 79.1 to 91.2) in the mild form. There was an increase 88.5% in cases of anemia between the years 1982-1992 and stabilization in the prevalence between the years 1992-2007. The analysis adjusted Poisson model showed a greater susceptibility to anemia in children 6 to 24 months of age, those breastfed for six months or more, who co-inhabited with more than 04 people in the same household and lived in houses with less than 05 rooms.
  
  
  CONCLUSIONS
  The results revealed that anemia remains an important public health problem in the state of Paraíba and despite having been shown an stabilization in the prevalence of anemia between 1992-2007, differently the prevalence observed between 1982-1992, this deficiency presents in high level, witch requires more effective measures of prevention and control.
authors: Programa de Pós-Graduação em Nutrição, Universidade Federal de Pernambuco, Recife, PE, Brasil. sheilasrg@yahoo.com.br
authors: Sheila Sherezaide Rocha
authors: SS
authors: Gondim
authors: Alcides da Silva
authors: Ada S
authors: Diniz
authors: Rafaela Alves de
authors: RA
authors: Souto
authors: Roberta Gouveia da Silva
authors: RG
authors: Bezerra
authors: Emídio Cavalcanti de
authors: EC
authors: Albuquerque
authors: Adriana de Azevedo
authors: Ade A
authors: Paiva
mesh_terms: D000740:Anemia / Q000097:blood / Q000453:epidemiology*; D001938:Brazil / Q000453:epidemiology; D001942:Breast Feeding; D002675:Child, Preschool; D004812:Epidemiologic Methods; D005260:Female; D006454:Hemoglobins / Q000032:analysis; D006798:Housing; D006801:Humans; D007223:Infant; D007228:Infant Nutrition Disorders / Q000097:blood / Q000453:epidemiology*; D000090463:Iron Deficiencies; D008297:Male; D012959:Socioeconomic Factors; D013997:Time Factors
chemical_list: D006454:Hemoglobins