Deficiency of vitamins C and E in women of childbearing age in Brazil: A systematic review and meta-analysis

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorLucchetta, Rosa Camila-
Autor(es): dc.creatorCavicchioli, Sophia de Andrade-
Autor(es): dc.creatorGini, Ana Luísa Rodriguez-
Autor(es): dc.creatorForgerini, Marcela-
Autor(es): dc.creatorVarallo, Fabiana Rossi-
Autor(es): dc.creatorde Nadai, Mariane Nunes-
Autor(es): dc.creatorFernandez-Llimos, Fernando-
Autor(es): dc.creatorMastroianni, Patricia de Carvalho-
Data de aceite: dc.date.accessioned2025-08-21T21:04:41Z-
Data de disponibilização: dc.date.available2025-08-21T21:04:41Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/1516-3180.2020.0799.R1.0904221-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/233890-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/233890-
Descrição: dc.descriptionBACKGROUND: Despite the several options available for supplements containing vitamins C and E, evidence regarding the prevalence of deficiency or insufficiency of these vitamins is weak. OBJECTIVES: To estimate the prevalence of deficiency or insufficiency of vitamins C and E and associated factors among women of childbearing age, in Brazil. DESIGN AND SETTING: Systematic review and meta-analysis conducted at a Brazilian public university. METHODS: A search from index inception until May 2020 was conducted. Meta-analyses were performed using inverse variance for fixed models, with summary proportions calculation using Freeman-Tukey dou-ble arcsine (base case). Reporting and methodological quality were assessed using the Joanna Briggs Institute tool for prevalence studies. RESULTS: Our review identified 12 studies, comprising 1,316 participants, especially breastfeeding wom-en. There was at least one quality weakness in all studies, mainly regarding sampling method (i.e. conve-nience sampling) and small sample size. The prevalence of vitamin C deficiency ranged from 0% to 40%. Only vitamin E deficiency was synthetized in meta-analyses, with mean prevalences of 6% regardless of the alpha-tocopherol cutoff in plasma, and 5% and 16% for cutoffs of <1.6-12.0 mmol/l and < 16.2 mmol/l, respectively. The cumulative meta-analysis suggested that a trend to lower prevalence of vitamin E deficiency occurred in recent studies. CONCLUSIONS: Although the studies identified in this systematic review had poor methodological and reporting quality, mild-moderate vitamin C and E deficiencies were identified, especially in breastfeeding women. Thus, designing and implementing policies does not seem to be a priority, because the need has not been properly dimensioned among women of childbearing age in Brazil. REGISTRATION NUMBER IN PROSPERO: CRD42020221605.-
Descrição: dc.descriptionMinistério da Ciência, Tecnologia, Inovações e Comunicações-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionSchool of Pharmaceutical Sciences Universidade Estadual Paulista (UNESP)-
Descrição: dc.descriptionSchool of Pharmaceutical Sciences Universidade Estadual Paulista (UNESP)-
Descrição: dc.descriptionCAPES: 001-
Descrição: dc.descriptionFAPESP: 2018/07501-9-
Descrição: dc.descriptionCNPq: 4426122019-2-
Formato: dc.format545-555-
Idioma: dc.languageen-
Relação: dc.relationSao Paulo Medical Journal-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectHypovitaminosis-
Palavras-chave: dc.subjectLactating-
Palavras-chave: dc.subjectMaternal nutrition-
Palavras-chave: dc.subjectNutritional epidemiology-
Título: dc.titleDeficiency of vitamins C and E in women of childbearing age in Brazil: A systematic review and meta-analysis-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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