Focused Principal Component Analysis: a graphical method for exploring dietary patterns

Detalhes bibliográficos
Autor(a) principal: Canuto, Raquel
Data de Publicação: 2010
Outros Autores: Camey, Suzi, Gigante, Denise P., Menezes, Ana M. B., Olinto, Maria Teresa Anselmo
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/4426
Resumo: The aim of the present study was to introduce Focused Principal Component Analysis (FPCA) as a novel exploratory method for providing insight into dietary patterns that emerge based on a given characteristic of the sample. To demonstrate the use of FPCA, we used a database of 1,968 adults. Food intake was obtained using a food frequency questionnaire covering 26 food items. The focus variables used for analysis were age, income, and schooling. All analyses were carried out using R software. The graphs generated show evidence of socioeconomic inequities in dietary patterns. Intake of whole-wheat foods, fruit, and vegetables was positively correlated with income and schooling, whereas for refined cereals, animal fats (lard), and white bread this correlation was negative. Age was inversely associated with intake of fast-food and processed foods and directly associated with a pattern that included fruit, green salads, and other vegetables. In an easy and direct fashion, FPCA allowed us to visualize dietary patterns based on a given focus variable.
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spelling Focused Principal Component Analysis: a graphical method for exploring dietary patternsFood ConsumptionPrincipal Component AnalysisNutritional EpidemiologyThe aim of the present study was to introduce Focused Principal Component Analysis (FPCA) as a novel exploratory method for providing insight into dietary patterns that emerge based on a given characteristic of the sample. To demonstrate the use of FPCA, we used a database of 1,968 adults. Food intake was obtained using a food frequency questionnaire covering 26 food items. The focus variables used for analysis were age, income, and schooling. All analyses were carried out using R software. The graphs generated show evidence of socioeconomic inequities in dietary patterns. Intake of whole-wheat foods, fruit, and vegetables was positively correlated with income and schooling, whereas for refined cereals, animal fats (lard), and white bread this correlation was negative. Age was inversely associated with intake of fast-food and processed foods and directly associated with a pattern that included fruit, green salads, and other vegetables. In an easy and direct fashion, FPCA allowed us to visualize dietary patterns based on a given focus variable.O presente estudo teve objetivo de apresentar a Análise de Componentes Principais Focada (ACPF) como um método exploratório para investigar padrões alimentares a partir de características da amostra. Para exemplificar utilizou-se as variáveis idade, renda e escolaridade de um banco de dados de 1.968 adultos. O consumo alimentar foi obtido através questionário de frequência alimentar (QFA) com 26 itens alimentares. As análises foram realizadas no programa R. Os gráficos gerados evidenciaram iniquidades socioeconômicas na conformação dos padrões alimentares. Alimentos integrais, frutas e verduras foram diretamente correlacionados com renda e escolaridade, e cereais refinados, gordura animal e pão branco tiveram associação inversa. A idade mostrou-se como associada inversamente a alimentos fast-food e industrializados e, diretamente, a um padrão "saudável" que inclui frutas, salada verde e outros vegetais. De maneira fácil e direta, a ACPF permitiu a visualização de correlações entre alimentos a partir de variáveis escolhidas como foco.Reports in Public HealthCadernos de Saúde Pública2010-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlapplication/pdfhttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/4426Reports in Public Health; Vol. 26 No. 11 (2010): NovemberCadernos de Saúde Pública; v. 26 n. 11 (2010): Novembro1678-44640102-311Xreponame:Cadernos de Saúde Públicainstname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZenghttps://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/4426/9017https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/4426/9018Canuto, RaquelCamey, SuziGigante, Denise P.Menezes, Ana M. B.Olinto, Maria Teresa Anselmoinfo:eu-repo/semantics/openAccess2024-03-06T15:28:11Zoai:ojs.teste-cadernos.ensp.fiocruz.br:article/4426Revistahttps://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:2024-03-06T13:05:06.821689Cadernos de Saúde Pública - Fundação Oswaldo Cruz (FIOCRUZ)true
dc.title.none.fl_str_mv Focused Principal Component Analysis: a graphical method for exploring dietary patterns
title Focused Principal Component Analysis: a graphical method for exploring dietary patterns
spellingShingle Focused Principal Component Analysis: a graphical method for exploring dietary patterns
Canuto, Raquel
Food Consumption
Principal Component Analysis
Nutritional Epidemiology
title_short Focused Principal Component Analysis: a graphical method for exploring dietary patterns
title_full Focused Principal Component Analysis: a graphical method for exploring dietary patterns
title_fullStr Focused Principal Component Analysis: a graphical method for exploring dietary patterns
title_full_unstemmed Focused Principal Component Analysis: a graphical method for exploring dietary patterns
title_sort Focused Principal Component Analysis: a graphical method for exploring dietary patterns
author Canuto, Raquel
author_facet Canuto, Raquel
Camey, Suzi
Gigante, Denise P.
Menezes, Ana M. B.
Olinto, Maria Teresa Anselmo
author_role author
author2 Camey, Suzi
Gigante, Denise P.
Menezes, Ana M. B.
Olinto, Maria Teresa Anselmo
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Canuto, Raquel
Camey, Suzi
Gigante, Denise P.
Menezes, Ana M. B.
Olinto, Maria Teresa Anselmo
dc.subject.por.fl_str_mv Food Consumption
Principal Component Analysis
Nutritional Epidemiology
topic Food Consumption
Principal Component Analysis
Nutritional Epidemiology
description The aim of the present study was to introduce Focused Principal Component Analysis (FPCA) as a novel exploratory method for providing insight into dietary patterns that emerge based on a given characteristic of the sample. To demonstrate the use of FPCA, we used a database of 1,968 adults. Food intake was obtained using a food frequency questionnaire covering 26 food items. The focus variables used for analysis were age, income, and schooling. All analyses were carried out using R software. The graphs generated show evidence of socioeconomic inequities in dietary patterns. Intake of whole-wheat foods, fruit, and vegetables was positively correlated with income and schooling, whereas for refined cereals, animal fats (lard), and white bread this correlation was negative. Age was inversely associated with intake of fast-food and processed foods and directly associated with a pattern that included fruit, green salads, and other vegetables. In an easy and direct fashion, FPCA allowed us to visualize dietary patterns based on a given focus variable.
publishDate 2010
dc.date.none.fl_str_mv 2010-11-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/4426
url https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/4426
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/4426/9017
https://cadernos.ensp.fiocruz.br/ojs/index.php/csp/article/view/4426/9018
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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. 26 No. 11 (2010): November
Cadernos de Saúde Pública; v. 26 n. 11 (2010): Novembro
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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