Identification of dietary patterns using factor analysis in an epidemiological study in São Paulo

Detalhes bibliográficos
Autor(a) principal: Marchioni,Dirce Maria Lobo
Data de Publicação: 2005
Outros Autores: Latorre,Maria do Rosário Dias de Oliveira, Eluf-Neto,José, Wünsch-Filho,Victor, Fisberg,Regina Mara
Tipo de documento: Artigo
Idioma: eng
Título da fonte: São Paulo medical journal (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802005000300007
Resumo: CONTEXT AND OBJECTIVE: Diet and nutrition are environmental factors in health/disease relationships. From the epidemiological viewpoint, diet represents a complex set of highly correlated exposures. Our objective was to identify patterns of food intake in a group of individuals living in São Paulo, and to develop objective dietary measurements for epidemiological purposes. DESIGN AND LOCAL: Exploratory factor analysis of data in a case-control study in seven teaching hospitals in São Paulo. METHODS: The participants were 517 patients (260 oral cancer cases and 257 controls) admitted to the study hospitals between November 1998 and March 2001. The weekly intake frequencies for dairy products, cereals, meat, processed meat, vegetables, pulses, fruits and sweets were assessed by means of a semi-quantitative food frequency questionnaire. Dietary patterns were identified by factor analysis, based on the intake of the eight food groups, using principal component analysis as an extraction method followed by varimax rotation. RESULTS: Factor analysis identified three patterns that accounted for 55% of the total variability within the sample. The first pattern ("prudent") was characterized by vegetable, fruit and meat intake; the second ("traditional") by cereals (mainly rice) and pulses (mainly beans); and the third ("snacks") by dairy products and processed meat. CONCLUSION: This study identified food intake patterns through an a posteriori approach. Such analysis may be useful for nutritional intervention programs and, after computing scores for each individual according to the patterns identified, for establishing a relationship between diet and other epidemiological measurements of interest.
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spelling Identification of dietary patterns using factor analysis in an epidemiological study in São PauloFood habitsDietDiet surveysFeeding behaviorNutritional assessmentCONTEXT AND OBJECTIVE: Diet and nutrition are environmental factors in health/disease relationships. From the epidemiological viewpoint, diet represents a complex set of highly correlated exposures. Our objective was to identify patterns of food intake in a group of individuals living in São Paulo, and to develop objective dietary measurements for epidemiological purposes. DESIGN AND LOCAL: Exploratory factor analysis of data in a case-control study in seven teaching hospitals in São Paulo. METHODS: The participants were 517 patients (260 oral cancer cases and 257 controls) admitted to the study hospitals between November 1998 and March 2001. The weekly intake frequencies for dairy products, cereals, meat, processed meat, vegetables, pulses, fruits and sweets were assessed by means of a semi-quantitative food frequency questionnaire. Dietary patterns were identified by factor analysis, based on the intake of the eight food groups, using principal component analysis as an extraction method followed by varimax rotation. RESULTS: Factor analysis identified three patterns that accounted for 55% of the total variability within the sample. The first pattern ("prudent") was characterized by vegetable, fruit and meat intake; the second ("traditional") by cereals (mainly rice) and pulses (mainly beans); and the third ("snacks") by dairy products and processed meat. CONCLUSION: This study identified food intake patterns through an a posteriori approach. Such analysis may be useful for nutritional intervention programs and, after computing scores for each individual according to the patterns identified, for establishing a relationship between diet and other epidemiological measurements of interest.Associação Paulista de Medicina - APM2005-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802005000300007Sao Paulo Medical Journal v.123 n.3 2005reponame:São Paulo medical journal (Online)instname:Associação Paulista de Medicinainstacron:APM10.1590/S1516-31802005000300007info:eu-repo/semantics/openAccessMarchioni,Dirce Maria LoboLatorre,Maria do Rosário Dias de OliveiraEluf-Neto,JoséWünsch-Filho,VictorFisberg,Regina Maraeng2006-01-20T00:00:00Zoai:scielo:S1516-31802005000300007Revistahttp://www.scielo.br/spmjhttps://old.scielo.br/oai/scielo-oai.phprevistas@apm.org.br1806-94601516-3180opendoar:2006-01-20T00:00São Paulo medical journal (Online) - Associação Paulista de Medicinafalse
dc.title.none.fl_str_mv Identification of dietary patterns using factor analysis in an epidemiological study in São Paulo
title Identification of dietary patterns using factor analysis in an epidemiological study in São Paulo
spellingShingle Identification of dietary patterns using factor analysis in an epidemiological study in São Paulo
Marchioni,Dirce Maria Lobo
Food habits
Diet
Diet surveys
Feeding behavior
Nutritional assessment
title_short Identification of dietary patterns using factor analysis in an epidemiological study in São Paulo
title_full Identification of dietary patterns using factor analysis in an epidemiological study in São Paulo
title_fullStr Identification of dietary patterns using factor analysis in an epidemiological study in São Paulo
title_full_unstemmed Identification of dietary patterns using factor analysis in an epidemiological study in São Paulo
title_sort Identification of dietary patterns using factor analysis in an epidemiological study in São Paulo
author Marchioni,Dirce Maria Lobo
author_facet Marchioni,Dirce Maria Lobo
Latorre,Maria do Rosário Dias de Oliveira
Eluf-Neto,José
Wünsch-Filho,Victor
Fisberg,Regina Mara
author_role author
author2 Latorre,Maria do Rosário Dias de Oliveira
Eluf-Neto,José
Wünsch-Filho,Victor
Fisberg,Regina Mara
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Marchioni,Dirce Maria Lobo
Latorre,Maria do Rosário Dias de Oliveira
Eluf-Neto,José
Wünsch-Filho,Victor
Fisberg,Regina Mara
dc.subject.por.fl_str_mv Food habits
Diet
Diet surveys
Feeding behavior
Nutritional assessment
topic Food habits
Diet
Diet surveys
Feeding behavior
Nutritional assessment
description CONTEXT AND OBJECTIVE: Diet and nutrition are environmental factors in health/disease relationships. From the epidemiological viewpoint, diet represents a complex set of highly correlated exposures. Our objective was to identify patterns of food intake in a group of individuals living in São Paulo, and to develop objective dietary measurements for epidemiological purposes. DESIGN AND LOCAL: Exploratory factor analysis of data in a case-control study in seven teaching hospitals in São Paulo. METHODS: The participants were 517 patients (260 oral cancer cases and 257 controls) admitted to the study hospitals between November 1998 and March 2001. The weekly intake frequencies for dairy products, cereals, meat, processed meat, vegetables, pulses, fruits and sweets were assessed by means of a semi-quantitative food frequency questionnaire. Dietary patterns were identified by factor analysis, based on the intake of the eight food groups, using principal component analysis as an extraction method followed by varimax rotation. RESULTS: Factor analysis identified three patterns that accounted for 55% of the total variability within the sample. The first pattern ("prudent") was characterized by vegetable, fruit and meat intake; the second ("traditional") by cereals (mainly rice) and pulses (mainly beans); and the third ("snacks") by dairy products and processed meat. CONCLUSION: This study identified food intake patterns through an a posteriori approach. Such analysis may be useful for nutritional intervention programs and, after computing scores for each individual according to the patterns identified, for establishing a relationship between diet and other epidemiological measurements of interest.
publishDate 2005
dc.date.none.fl_str_mv 2005-05-01
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=S1516-31802005000300007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802005000300007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-31802005000300007
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Paulista de Medicina - APM
publisher.none.fl_str_mv Associação Paulista de Medicina - APM
dc.source.none.fl_str_mv Sao Paulo Medical Journal v.123 n.3 2005
reponame:São Paulo medical journal (Online)
instname:Associação Paulista de Medicina
instacron:APM
instname_str Associação Paulista de Medicina
instacron_str APM
institution APM
reponame_str São Paulo medical journal (Online)
collection São Paulo medical journal (Online)
repository.name.fl_str_mv São Paulo medical journal (Online) - Associação Paulista de Medicina
repository.mail.fl_str_mv revistas@apm.org.br
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