Relative validation of a food frequency questionnaire to assess dietary fatty acid intake

ABSTRACT Objectives: This study aimed to develop and validate a Food Frequency Questionnaire (FFQ) for assessing consumption of fatty acids among pregnant women. Methods: Two lists of foods were created according to percent contribution of each nutrient estimated by three 24-hour recalls: a long a...

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Autores principales:	Queiroz Carvalho,Gisele, Pereira,Marcos, Santana,Jerusa M., Louro,Iuri D., Santos,Djanilson B.
Lenguaje:	English
Publicado:	Sociedad Chilena de Nutrición, Bromatología y Toxicología 2020
Materias:	Dietary assessment Food Frequency Questionnaire Long-chain polyunsaturated fatty acids Pregnant Relative validation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-75182020000300396
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spelling	oai:scielo:S0717-751820200003003962020-06-22Relative validation of a food frequency questionnaire to assess dietary fatty acid intakeQueiroz Carvalho,GiselePereira,MarcosSantana,Jerusa M.Louro,Iuri D.Santos,Djanilson B. Dietary assessment Food Frequency Questionnaire Long-chain polyunsaturated fatty acids Pregnant Relative validation ABSTRACT Objectives: This study aimed to develop and validate a Food Frequency Questionnaire (FFQ) for assessing consumption of fatty acids among pregnant women. Methods: Two lists of foods were created according to percent contribution of each nutrient estimated by three 24-hour recalls: a long and short version FFQ to estimate long-chain polyunsaturated fatty acids (LCPUFAs). Student paired t-test and Pearson correlation coefficients were used to verify the differences in mean consumption of nutrients from the FFQ and 24-hour recall. The concordance between the consumption values of the two methods was assessed using the Bland-Altman method and quartiles concordance. Results: For the FFQ - long version, correlation values ranged from 0.33 (p<0.05) to 0.62 (p<0.01) for docosahexaenoic acid (DHA) and linoleic acid (LA), respectively. Eicosapentaenoic acid (EPA) and docosapentaenoic acid (DPA) were not correlated. Exact concordance ranged from 49.0% (energy) to 22.4% (EPA), and discordance ranged from 14.3% (DPA) to 2.0% (Saturated). The FFQ - short version had high correlations for LCPUFAs. Exact concordance ranged from 36.7% (n-3 LCPUFA) to 16.3% (DHA); and discordance from 12.2% (DPA) to 2.0% (arachidonic acid). Bland-Altman analysis showed good concordance for both versions. Conclusion: This nutrient-specific FFQ is a valid instrument to be used to estimate the level of consumption of fatty acids among pregnant women.info:eu-repo/semantics/openAccessSociedad Chilena de Nutrición, Bromatología y ToxicologíaRevista chilena de nutrición v.47 n.3 20202020-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-75182020000300396en10.4067/S0717-75182020000300396
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Dietary assessment Food Frequency Questionnaire Long-chain polyunsaturated fatty acids Pregnant Relative validation
spellingShingle	Dietary assessment Food Frequency Questionnaire Long-chain polyunsaturated fatty acids Pregnant Relative validation Queiroz Carvalho,Gisele Pereira,Marcos Santana,Jerusa M. Louro,Iuri D. Santos,Djanilson B. Relative validation of a food frequency questionnaire to assess dietary fatty acid intake
description	ABSTRACT Objectives: This study aimed to develop and validate a Food Frequency Questionnaire (FFQ) for assessing consumption of fatty acids among pregnant women. Methods: Two lists of foods were created according to percent contribution of each nutrient estimated by three 24-hour recalls: a long and short version FFQ to estimate long-chain polyunsaturated fatty acids (LCPUFAs). Student paired t-test and Pearson correlation coefficients were used to verify the differences in mean consumption of nutrients from the FFQ and 24-hour recall. The concordance between the consumption values of the two methods was assessed using the Bland-Altman method and quartiles concordance. Results: For the FFQ - long version, correlation values ranged from 0.33 (p<0.05) to 0.62 (p<0.01) for docosahexaenoic acid (DHA) and linoleic acid (LA), respectively. Eicosapentaenoic acid (EPA) and docosapentaenoic acid (DPA) were not correlated. Exact concordance ranged from 49.0% (energy) to 22.4% (EPA), and discordance ranged from 14.3% (DPA) to 2.0% (Saturated). The FFQ - short version had high correlations for LCPUFAs. Exact concordance ranged from 36.7% (n-3 LCPUFA) to 16.3% (DHA); and discordance from 12.2% (DPA) to 2.0% (arachidonic acid). Bland-Altman analysis showed good concordance for both versions. Conclusion: This nutrient-specific FFQ is a valid instrument to be used to estimate the level of consumption of fatty acids among pregnant women.
author	Queiroz Carvalho,Gisele Pereira,Marcos Santana,Jerusa M. Louro,Iuri D. Santos,Djanilson B.
author_facet	Queiroz Carvalho,Gisele Pereira,Marcos Santana,Jerusa M. Louro,Iuri D. Santos,Djanilson B.
author_sort	Queiroz Carvalho,Gisele
title	Relative validation of a food frequency questionnaire to assess dietary fatty acid intake
title_short	Relative validation of a food frequency questionnaire to assess dietary fatty acid intake
title_full	Relative validation of a food frequency questionnaire to assess dietary fatty acid intake
title_fullStr	Relative validation of a food frequency questionnaire to assess dietary fatty acid intake
title_full_unstemmed	Relative validation of a food frequency questionnaire to assess dietary fatty acid intake
title_sort	relative validation of a food frequency questionnaire to assess dietary fatty acid intake
publisher	Sociedad Chilena de Nutrición, Bromatología y Toxicología
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-75182020000300396
work_keys_str_mv	AT queirozcarvalhogisele relativevalidationofafoodfrequencyquestionnairetoassessdietaryfattyacidintake AT pereiramarcos relativevalidationofafoodfrequencyquestionnairetoassessdietaryfattyacidintake AT santanajerusam relativevalidationofafoodfrequencyquestionnairetoassessdietaryfattyacidintake AT louroiurid relativevalidationofafoodfrequencyquestionnairetoassessdietaryfattyacidintake AT santosdjanilsonb relativevalidationofafoodfrequencyquestionnairetoassessdietaryfattyacidintake
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Relative validation of a food frequency questionnaire to assess dietary fatty acid intake

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