Anemia e deficiência de ferro em pré-escolares da Amazônia Ocidental brasileira: prevalência e fatores associados / Anemia and iron deficiency among schoolchildren in the Western Brazilian Amazon: prevalence and associated factors
Cad. saúde pública
;
27(1): 131-142, jan. 2011. ilus, tab
Article
in Portuguese
| LILACS
| ID: lil-578666
RESUMO
Estudo transversal de base populacional que investigou prevalênciasde anemia e fatores associados à anemia, anemia ferropriva e deficiência de ferro entre crianças de 6 a 60 meses da área urbana de dois municípios do Acre, Brasil (N = 624). Dosagens de hemoglobina sanguínea, ferritina e receptor solúvel de transferrina plasmáticas foram realizadas mediante sangue venoso. Condições sócio-econômicas, demográficas e de morbidade foram obtidas por questionário. Razões de prevalências foram calculadas por regressão de Poisson em modelo hierárquico. As prevalências de anemia, anemia ferropriva e deficiência de ferro foram de 30,6 por cento, 20,9 por cento e 43,5 por cento, respectivamente. Menores de 24 meses apresentaram maior risco para anemia, anemia ferropriva e deficiência de ferro. Pertencer ao maior tercil do índice de riqueza conferiu proteção contra anemia ferropriva (RP = 0,62; IC95 por cento 0,40-0,98). Pertencer ao maior quartil do índice estatura/idade foi protetor contra anemia (0,62; 0,44-0,86) e anemia ferropriva (0,51; 0,33-0,79), e ocorrência recente de diarréia representou risco (anemia 1,47; 1,12-1,92 e anemia ferropriva 1,44; 1,03-2,01). A infestação por geohelmintos conferiu risco para anemia, anemia ferropriva e deficiência de ferro.
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 percent, 20.9 percent, and 43.5 percent, 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 percentCI 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.
Full text:
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Index:
LILACS (Americas)
Main subject:
Anemia, Iron-Deficiency
/
Anemia
Type of study:
Etiology study
/
Observational study
/
Prevalence study
/
Prognostic study
/
Risk factors
/
Screening study
Limits:
Child, preschool
/
Female
/
Humans
/
Male
Country/Region as subject:
South America
/
Brazil
Language:
Portuguese
Journal:
Cad. saúde pública
Journal subject:
Public Health
/
Toxicology
Year:
2011
Type:
Article
/
Project document
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de Minas Gerais/BR
/
Universidade Federal do Acre/BR
/
Universidade de São Paulo/BR
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