Reproducibility of a food frequency questionnaire for adolescents

Detalhes bibliográficos
Autor(a) principal: Marchioni, Dirce Maria Lobo
Data de Publicação: 2007
Outros Autores: Voci, Silvia Maria, Lima, Flávia Emília Leite de, Fisberg, Regina Mara, Slater, Betzabeth
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Cadernos de Saúde Pública
Texto Completo: https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3073
Resumo: To assess the reproducibility of a validated 76-item food frequency questionnaire designed to estimate diet in adolescents (Adolescent Food Frequency Questionnaire - AFFQ) in the city of Sao Paulo, Brazil, a test-retest study was conducted (n = 49). Intraclass correlation coefficient (ICC), weighted kappa, and percentage of agreement were used in both crude and energy-adjusted nutrient intakes. Bland Altman plots were used to examine the limits of agreement for energy and macronutrients. The ICC ranged from 0.48 (carbohydrates) to 0.65 (vitamin C) in crude values and from 0.25 (total fat) to 0.58 (vitamin C) in adjusted values. Kappa values ranged from 0.28 (protein and fiber) to 0.56 (unsaturated fat). Bland Altman showed a trend towards larger difference in energy according to increased intake values and a bias towards extreme values for fat intake. The percent of individuals classified in the same category on the two occasions was on average 54.2%. By conclusion, the Adolescent Food Frequency Questionnaire showed reasonable reproducibility and can be used in studies that aim to classify groups into intake categories.
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spelling Reproducibility of a food frequency questionnaire for adolescentsAdolescentFood HabitsQuestionnairesReproducibility of ResultsTo assess the reproducibility of a validated 76-item food frequency questionnaire designed to estimate diet in adolescents (Adolescent Food Frequency Questionnaire - AFFQ) in the city of Sao Paulo, Brazil, a test-retest study was conducted (n = 49). Intraclass correlation coefficient (ICC), weighted kappa, and percentage of agreement were used in both crude and energy-adjusted nutrient intakes. Bland Altman plots were used to examine the limits of agreement for energy and macronutrients. The ICC ranged from 0.48 (carbohydrates) to 0.65 (vitamin C) in crude values and from 0.25 (total fat) to 0.58 (vitamin C) in adjusted values. Kappa values ranged from 0.28 (protein and fiber) to 0.56 (unsaturated fat). Bland Altman showed a trend towards larger difference in energy according to increased intake values and a bias towards extreme values for fat intake. The percent of individuals classified in the same category on the two occasions was on average 54.2%. By conclusion, the Adolescent Food Frequency Questionnaire showed reasonable reproducibility and can be used in studies that aim to classify groups into intake categories.Para avaliar a reprodutibilidade de um Questionário de Freqüência Alimentar para Adolescentes (QFAA), 76 itens, validado, desenvolvido para estimar a dieta habitual de adolescentes em São Paulo, Brasil, foi conduzido um estudo do tipo teste-reteste (n = 49). Utilizaram-se o coeficiente de correlação intraclasse (CCI), o kappa ponderado e a porcentagem de concordância para os valores de ingestão brutos e ajustados pela energia. Os limites de concordância para energia e macronutrientes foram examinados pelos gráficos de Bland Altman. O CCI variou de 0,48 (carboidratos) a 0,65 (vitamina C) para os nutrientes brutos e de 0,25 (lipídios totais) a 0,58 (vitamina C) para os ajustados. Os valores do kappa variaram de 0,28 (proteínas e fibras) a 0,56 (lipídios insaturados). O gráfico de Bland Altman evidenciou tendência à maior diferença para energia conforme o aumento dos valores de ingestão e para lipídios com os valores extremos. A porcentagem de indivíduos classificados na mesma categoria foi em média 54,2%. Conclui-se que o QFAA apresentou razoável reprodutibilidade e pode ser utilizado em estudos que objetivam classificar os indivíduos em categorias de consumo.Reports in Public HealthCadernos de Saúde Pública2007-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlapplication/pdfhttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3073Reports in Public Health; Vol. 23 No. 9 (2007): SeptemberCadernos de Saúde Pública; v. 23 n. 9 (2007): Setembro1678-44640102-311Xreponame:Cadernos de Saúde Públicainstname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZenghttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3073/6200https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3073/6201Marchioni, Dirce Maria LoboVoci, Silvia MariaLima, Flávia Emília Leite deFisberg, Regina MaraSlater, Betzabethinfo:eu-repo/semantics/openAccess2024-03-06T15:27:23Zoai:ojs.teste-cadernos.ensp.fiocruz.br:article/3073Revistahttps://cadernos.ensp.fiocruz.br/ojs/index.php/csphttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/oaicadernos@ensp.fiocruz.br||cadernos@ensp.fiocruz.br1678-44640102-311Xopendoar:2024-03-06T13:03:34.744084Cadernos de Saúde Pública - Fundação Oswaldo Cruz (FIOCRUZ)true
dc.title.none.fl_str_mv Reproducibility of a food frequency questionnaire for adolescents
title Reproducibility of a food frequency questionnaire for adolescents
spellingShingle Reproducibility of a food frequency questionnaire for adolescents
Marchioni, Dirce Maria Lobo
Adolescent
Food Habits
Questionnaires
Reproducibility of Results
title_short Reproducibility of a food frequency questionnaire for adolescents
title_full Reproducibility of a food frequency questionnaire for adolescents
title_fullStr Reproducibility of a food frequency questionnaire for adolescents
title_full_unstemmed Reproducibility of a food frequency questionnaire for adolescents
title_sort Reproducibility of a food frequency questionnaire for adolescents
author Marchioni, Dirce Maria Lobo
author_facet Marchioni, Dirce Maria Lobo
Voci, Silvia Maria
Lima, Flávia Emília Leite de
Fisberg, Regina Mara
Slater, Betzabeth
author_role author
author2 Voci, Silvia Maria
Lima, Flávia Emília Leite de
Fisberg, Regina Mara
Slater, Betzabeth
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Marchioni, Dirce Maria Lobo
Voci, Silvia Maria
Lima, Flávia Emília Leite de
Fisberg, Regina Mara
Slater, Betzabeth
dc.subject.por.fl_str_mv Adolescent
Food Habits
Questionnaires
Reproducibility of Results
topic Adolescent
Food Habits
Questionnaires
Reproducibility of Results
description To assess the reproducibility of a validated 76-item food frequency questionnaire designed to estimate diet in adolescents (Adolescent Food Frequency Questionnaire - AFFQ) in the city of Sao Paulo, Brazil, a test-retest study was conducted (n = 49). Intraclass correlation coefficient (ICC), weighted kappa, and percentage of agreement were used in both crude and energy-adjusted nutrient intakes. Bland Altman plots were used to examine the limits of agreement for energy and macronutrients. The ICC ranged from 0.48 (carbohydrates) to 0.65 (vitamin C) in crude values and from 0.25 (total fat) to 0.58 (vitamin C) in adjusted values. Kappa values ranged from 0.28 (protein and fiber) to 0.56 (unsaturated fat). Bland Altman showed a trend towards larger difference in energy according to increased intake values and a bias towards extreme values for fat intake. The percent of individuals classified in the same category on the two occasions was on average 54.2%. By conclusion, the Adolescent Food Frequency Questionnaire showed reasonable reproducibility and can be used in studies that aim to classify groups into intake categories.
publishDate 2007
dc.date.none.fl_str_mv 2007-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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format article
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dc.identifier.uri.fl_str_mv https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3073
url https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3073
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3073/6200
https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/3073/6201
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
application/pdf
dc.publisher.none.fl_str_mv Reports in Public Health
Cadernos de Saúde Pública
publisher.none.fl_str_mv Reports in Public Health
Cadernos de Saúde Pública
dc.source.none.fl_str_mv Reports in Public Health; Vol. 23 No. 9 (2007): September
Cadernos de Saúde Pública; v. 23 n. 9 (2007): Setembro
1678-4464
0102-311X
reponame:Cadernos de Saúde Pública
instname:Fundação Oswaldo Cruz (FIOCRUZ)
instacron:FIOCRUZ
instname_str Fundação Oswaldo Cruz (FIOCRUZ)
instacron_str FIOCRUZ
institution FIOCRUZ
reponame_str Cadernos de Saúde Pública
collection Cadernos de Saúde Pública
repository.name.fl_str_mv Cadernos de Saúde Pública - Fundação Oswaldo Cruz (FIOCRUZ)
repository.mail.fl_str_mv cadernos@ensp.fiocruz.br||cadernos@ensp.fiocruz.br
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