17
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Análise crítica de estudos brasileiros sobre deficiência de vitamina A no grupo materno-infantil Translated title: Critical analysis of Brazilian studies about vitamin A deficiency in maternal-child group

      research-article

      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

          OBJETIVO: Apresentar uma análise crítica de estudos da literatura sobre a deficiência de vitamina A (DVA) no Brasil, segundo o indicador bioquímico retinol sérico, considerando-se o impacto negativo da DVA na saúde reprodutiva e no desenvolvimento infantil. FONTES DE DADOS: os bancos de dados Medline e BVS, no período de 1994 a 2007, foram rastreados com a combinação de descritores: "vitamin A deficiency", "Brazil", "pregnant", "children" e "retinol serum level". A inclusão dos artigos foi realizada com base em critérios de elegibilidade referentes à população, desenho do estudo e idioma, enfatizando-se estudos com gestantes, puérperas, nutrizes, lactentes e pré-escolares que não apresentassem doenças crônicas não-transmissíveis ou infecciosas. SÍNTESE DOS DADOS: dos 27 artigos selecionados, 25 eram estudos transversais, um era caso-controle e um estudo longitudinal. Identificou-se que 71% e 25% dos trabalhos com gestantes e crianças, respectivamente, adotaram valores de retinol sérico <1,05µmol/L como ponto de corte. Todos os estudos apontaram a DVA como um problema de proporção preocupante. Reconhece-se a emergente inserção dos adolescentes no grupo de risco potencial para DVA e da antropometria como variável independente para tal deficiência nutricional. CONCLUSÕES: Aponta-se uma necessidade de incluir estratégias de intervenção adicionais à suplementação, reavaliar pontos de corte na interpretação do diagnóstico da DVA e refletir sobre a pertinência da inclusão de novas áreas e grupos com risco potencial para DVA em programas de intervenção.

          Translated abstract

          OBJECTIVE: To critically review the literature regarding vitamin A deficiency (VAD) in Brazil, according to biochemical indicators, considering that VAD has a negative impact upon reproductive health and child development. DATA SOURCE: Medline and BVS databases were searched from 1994 to 2007, using the combination of the following terms: "vitamin A deficiency", "Brazil", "pregnant", "children" and "retinol serum level". Inclusion criteria were based on characteristics of the studied population, study design and language, with emphasis on studies with the following subjects: pregnant, postpartum and nursing women, infants and preschool children without chronic or infectious diseases. DATA SYNTHESIS: Among the 27 selected studies, 25 were cross-sectional, one was a case-control, and one was a cohort study. 71% and 25% of the studies with pregnant women and with children, respectively, adopted retinol serum level <1.05µmol/L as the cut-off value for VAD. All the studies pointed VAD as a health problem of major concern. The need of including adolescents as a risk group of VAD is recognized. Anthropometry should be considered as an independent variable for this nutritional deficiency. CONCLUSIONS: The findings of this review show the need of aditional intervention strategies regarding supplementation of vitamin A. VAD should be secuched not only in risk areas, but throughout the country, in several potential risk groups. It is important to reevaluate cut-off points in order to better diagnose vitamin A deficiency.

          Related collections

          Most cited references52

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

          Indicators for Assessing Vitamin A Deficiency and Thier Application in Monitoring and Evaluating Intervention Programmes

          (1996)
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Association of serum concentrations of retinol and carotenoids with overweight in children and adolescents.

            A study was conducted to verify the association between serum concentrations of retinol and carotenoids with overweight in children and adolescents. In total 471 children (7-9.9 y of age) and adolescents (10-17 y of age), living in a poor region of the city of Rio de Janeiro, Brazil, were assessed. Serum concentrations of retinol and carotenoids were assessed by high-performance liquid chromatography, and cutoffs for inadequacy of retinol and carotenoids were <30 and <40 microg/dL, respectively. Overweight was defined by the sex- and age-specific body mass index cutoffs recommended by World Health Organization. The logistic regression model was used to test the association of overweight, gender, and age range with low serum concentrations of retinol and carotenoids. Prevalences were 10% for low serum concentration of retinol, 55.8% for carotenoids, and 15.3% for overweight. Retinol inadequacy was significantly higher in adolescents (12.6%) than in children (6.8%). The average of carotenoids was significantly lower in overweight subjects (30.40 +/- 16.74 versus 43.06 +/- 25.26 microg/dL, P = 0.001). Overweight children and adolescents presented a greater chance of a decrease in serum concentrations of carotenoids (odds ratio 2.51, 95% confidence interval 1.43-4.39) when compared with non-overweight subjects. An important prevalence of vitamin A deficiency was found. Overweight children, as much as adolescents, may have a greater chance of presenting low concentrations of carotenoids and, hence, a lower antioxidant defense.
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Caderneta de saúde da criança

              (2010)
                Bookmark

                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                rpp
                Revista Paulista de Pediatria
                Rev. paul. pediatr.
                Sociedade de Pediatria de São Paulo (São Paulo )
                1984-0462
                December 2008
                : 26
                : 4
                : 392-399
                Affiliations
                [1 ] Universidade Federal do Rio de Janeiro Brazil
                [2 ] Universidade Federal do Rio de Janeiro Brazil
                [3 ] Universidade Federal do Rio de Janeiro Brazil
                [4 ] Universidade Federal do Rio de Janeiro Brazil
                [5 ] Universidade Federal do Rio de Janeiro Brazil
                [6 ] Universidade Federal do Rio de Janeiro Brazil
                [7 ] Universidade Federal do Rio de Janeiro Brazil
                Article
                S0103-05822008000400014
                10.1590/S0103-05822008000400014
                a6c0cb60-1bd5-4005-b904-003a39e5021f

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0103-0582&lng=en
                Categories
                PEDIATRICS

                Pediatrics
                vitamin A deficiency,epidemiology,nutrition,indicators,deficiência de vitamina A,epidemiologia,nutrição,indicadores

                Comments

                Comment on this article