Validity and reproducibility of a food frequency questionnaire for adults of São Paulo, Brazil

Detalhes bibliográficos
Autor(a) principal: Selem,Soraya Sant'Ana de Castro
Data de Publicação: 2014
Outros Autores: Carvalho,Aline Martins de, Verly-Junior,Eliseu, Carlos,Jackeline Venâncio, Teixeira,Juliana Araujo, Marchioni,Dirce Maria Lobo, Fisberg,Regina Mara
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista brasileira de epidemiologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-790X2014000400852
Resumo: OBJECTIVES: To assess the validity and reproducibility of a food frequency questionnaire developed for estimating the food consumption of adults in São Paulo, Brazil, based population study. METHODS: A sample of individuals aged above 20 years, of both genders, living in São Paulo, was used for the validation study (n = 77) and reproducibility study (n = 74) of the food frequency questionnaire. To verify the validity and reproducibility of energy and 19 nutrients were applied two food frequency questionnaires (60 items) and three 24-hour dietary recalls (24HR - reference method). The validity was verified by Spearman correlation coefficient (crude and de-attenuated) and weighted Kappa, and reproducibility by intraclass correlation coefficients and weighted kappa. RESULTS: In analyzes of validity de-attenuated correlation coefficients ranged from 0.21 (carbohydrate) to 0.74 (energy), and weighted kappa exceeded 0.40 for 30% of the nutrients. Polyunsaturated fat and folate did not show significant correlation and weighted kappa. In reproducibility correlation coefficients ranged from 0.36 (polyunsaturated fat) to 0.69 (calcium), and weighted kappa exceeded 0.40 for 80% of the nutrients. CONCLUSION: The food frequency questionnaire analyzed has good validity and reproducibility for estimating the food consumption of adults in São Paulo compared to the reference method, so it is an appropriate instrument to be used in epidemiological studies on similar populations. Estimates of polyunsaturated fat and folate should be interpreted with caution.
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spelling Validity and reproducibility of a food frequency questionnaire for adults of São Paulo, BrazilDiet surveysFood-frequency questionnaireFood consumptionValidation studiesAdultSão Paulo OBJECTIVES: To assess the validity and reproducibility of a food frequency questionnaire developed for estimating the food consumption of adults in São Paulo, Brazil, based population study. METHODS: A sample of individuals aged above 20 years, of both genders, living in São Paulo, was used for the validation study (n = 77) and reproducibility study (n = 74) of the food frequency questionnaire. To verify the validity and reproducibility of energy and 19 nutrients were applied two food frequency questionnaires (60 items) and three 24-hour dietary recalls (24HR - reference method). The validity was verified by Spearman correlation coefficient (crude and de-attenuated) and weighted Kappa, and reproducibility by intraclass correlation coefficients and weighted kappa. RESULTS: In analyzes of validity de-attenuated correlation coefficients ranged from 0.21 (carbohydrate) to 0.74 (energy), and weighted kappa exceeded 0.40 for 30% of the nutrients. Polyunsaturated fat and folate did not show significant correlation and weighted kappa. In reproducibility correlation coefficients ranged from 0.36 (polyunsaturated fat) to 0.69 (calcium), and weighted kappa exceeded 0.40 for 80% of the nutrients. CONCLUSION: The food frequency questionnaire analyzed has good validity and reproducibility for estimating the food consumption of adults in São Paulo compared to the reference method, so it is an appropriate instrument to be used in epidemiological studies on similar populations. Estimates of polyunsaturated fat and folate should be interpreted with caution. Associação Brasileira de Saúde Coletiva2014-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-790X2014000400852Revista Brasileira de Epidemiologia v.17 n.4 2014reponame:Revista brasileira de epidemiologia (Online)instname:Associação Brasileira de Saúde Coletiva (ABRASCO)instacron:ABRASCO10.1590/1809-4503201400040005info:eu-repo/semantics/openAccessSelem,Soraya Sant'Ana de CastroCarvalho,Aline Martins deVerly-Junior,EliseuCarlos,Jackeline VenâncioTeixeira,Juliana AraujoMarchioni,Dirce Maria LoboFisberg,Regina Maraeng2014-11-04T00:00:00Zoai:scielo:S1415-790X2014000400852Revistahttp://www.scielo.br/rbepidhttps://old.scielo.br/oai/scielo-oai.php||revbrepi@usp.br1980-54971415-790Xopendoar:2014-11-04T00:00Revista brasileira de epidemiologia (Online) - Associação Brasileira de Saúde Coletiva (ABRASCO)false
dc.title.none.fl_str_mv Validity and reproducibility of a food frequency questionnaire for adults of São Paulo, Brazil
title Validity and reproducibility of a food frequency questionnaire for adults of São Paulo, Brazil
spellingShingle Validity and reproducibility of a food frequency questionnaire for adults of São Paulo, Brazil
Selem,Soraya Sant'Ana de Castro
Diet surveys
Food-frequency questionnaire
Food consumption
Validation studies
Adult
São Paulo
title_short Validity and reproducibility of a food frequency questionnaire for adults of São Paulo, Brazil
title_full Validity and reproducibility of a food frequency questionnaire for adults of São Paulo, Brazil
title_fullStr Validity and reproducibility of a food frequency questionnaire for adults of São Paulo, Brazil
title_full_unstemmed Validity and reproducibility of a food frequency questionnaire for adults of São Paulo, Brazil
title_sort Validity and reproducibility of a food frequency questionnaire for adults of São Paulo, Brazil
author Selem,Soraya Sant'Ana de Castro
author_facet Selem,Soraya Sant'Ana de Castro
Carvalho,Aline Martins de
Verly-Junior,Eliseu
Carlos,Jackeline Venâncio
Teixeira,Juliana Araujo
Marchioni,Dirce Maria Lobo
Fisberg,Regina Mara
author_role author
author2 Carvalho,Aline Martins de
Verly-Junior,Eliseu
Carlos,Jackeline Venâncio
Teixeira,Juliana Araujo
Marchioni,Dirce Maria Lobo
Fisberg,Regina Mara
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Selem,Soraya Sant'Ana de Castro
Carvalho,Aline Martins de
Verly-Junior,Eliseu
Carlos,Jackeline Venâncio
Teixeira,Juliana Araujo
Marchioni,Dirce Maria Lobo
Fisberg,Regina Mara
dc.subject.por.fl_str_mv Diet surveys
Food-frequency questionnaire
Food consumption
Validation studies
Adult
São Paulo
topic Diet surveys
Food-frequency questionnaire
Food consumption
Validation studies
Adult
São Paulo
description OBJECTIVES: To assess the validity and reproducibility of a food frequency questionnaire developed for estimating the food consumption of adults in São Paulo, Brazil, based population study. METHODS: A sample of individuals aged above 20 years, of both genders, living in São Paulo, was used for the validation study (n = 77) and reproducibility study (n = 74) of the food frequency questionnaire. To verify the validity and reproducibility of energy and 19 nutrients were applied two food frequency questionnaires (60 items) and three 24-hour dietary recalls (24HR - reference method). The validity was verified by Spearman correlation coefficient (crude and de-attenuated) and weighted Kappa, and reproducibility by intraclass correlation coefficients and weighted kappa. RESULTS: In analyzes of validity de-attenuated correlation coefficients ranged from 0.21 (carbohydrate) to 0.74 (energy), and weighted kappa exceeded 0.40 for 30% of the nutrients. Polyunsaturated fat and folate did not show significant correlation and weighted kappa. In reproducibility correlation coefficients ranged from 0.36 (polyunsaturated fat) to 0.69 (calcium), and weighted kappa exceeded 0.40 for 80% of the nutrients. CONCLUSION: The food frequency questionnaire analyzed has good validity and reproducibility for estimating the food consumption of adults in São Paulo compared to the reference method, so it is an appropriate instrument to be used in epidemiological studies on similar populations. Estimates of polyunsaturated fat and folate should be interpreted with caution.
publishDate 2014
dc.date.none.fl_str_mv 2014-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-790X2014000400852
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-790X2014000400852
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1809-4503201400040005
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Associação Brasileira de Saúde Coletiva
publisher.none.fl_str_mv Associação Brasileira de Saúde Coletiva
dc.source.none.fl_str_mv Revista Brasileira de Epidemiologia v.17 n.4 2014
reponame:Revista brasileira de epidemiologia (Online)
instname:Associação Brasileira de Saúde Coletiva (ABRASCO)
instacron:ABRASCO
instname_str Associação Brasileira de Saúde Coletiva (ABRASCO)
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reponame_str Revista brasileira de epidemiologia (Online)
collection Revista brasileira de epidemiologia (Online)
repository.name.fl_str_mv Revista brasileira de epidemiologia (Online) - Associação Brasileira de Saúde Coletiva (ABRASCO)
repository.mail.fl_str_mv ||revbrepi@usp.br
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