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Validation of a simplified food frequency questionnaire for the assessment of dietary habits in Iranian adults: Isfahan Healthy Heart Program, Iran
BACKGROUND: Dietary assessment is the first step of dietary modification in community-based interventional programs. This study was performed to validate a simple food frequency questionnaire (SFFQ) for assessment of selected food items in epidemiological studies with a large sample size as well as...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Isfahan Cardiovascular Research Center, Isfahan University of Medical Sciences
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4568199/ https://www.ncbi.nlm.nih.gov/pubmed/26405443 |
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author | Mohammadifard, Noushin Sajjadi, Firouzeh Maghroun, Maryam Alikhasi, Hassan Nilforoushzadeh, Farzaneh Sarrafzadegan, Nizal |
author_facet | Mohammadifard, Noushin Sajjadi, Firouzeh Maghroun, Maryam Alikhasi, Hassan Nilforoushzadeh, Farzaneh Sarrafzadegan, Nizal |
author_sort | Mohammadifard, Noushin |
collection | PubMed |
description | BACKGROUND: Dietary assessment is the first step of dietary modification in community-based interventional programs. This study was performed to validate a simple food frequency questionnaire (SFFQ) for assessment of selected food items in epidemiological studies with a large sample size as well as community trails. METHODS: This validation study was carried out on 264 healthy adults aged ≥ 41 years old living in 3 district central of Iran, including Isfahan, Najafabad, and Arak. Selected food intakes were assessed using a 48-item food frequency questionnaire (FFQ). The FFQ was interviewer-administered, which was completed twice; at the beginning of the study and 2 weeks thereafter. The validity of this SFFQ was examined compared to estimated amount by single 24 h dietary recall and 2 days dietary record. Validation of the FFQ was determined using Spearman correlation coefficients between daily frequency consumption of food groups as assessed by the FFQ and the qualitative amount of daily food groups intake accessed by dietary reference method was applied to evaluate validity. Intraclass correlation coefficients (ICC) were used to determine the reproducibility. RESULTS: Spearman correlation coefficient between the estimated amount of food groups intake by examined and reference methods ranged from 0.105 (P = 0.378) in pickles to 0.48 (P < 0.001) in plant protein. ICC for reproducibility of FFQ were between 0.47-0.69 in different food groups (P < 0.001). CONCLUSION: The designed SFFQ has a good relative validity and reproducibility for assessment of selected food groups intake. Thus, it can serve as a valid tool in epidemiological studies and clinical trial with large participants. |
format | Online Article Text |
id | pubmed-4568199 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Isfahan Cardiovascular Research Center, Isfahan University of Medical Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-45681992015-09-24 Validation of a simplified food frequency questionnaire for the assessment of dietary habits in Iranian adults: Isfahan Healthy Heart Program, Iran Mohammadifard, Noushin Sajjadi, Firouzeh Maghroun, Maryam Alikhasi, Hassan Nilforoushzadeh, Farzaneh Sarrafzadegan, Nizal ARYA Atheroscler Original Article BACKGROUND: Dietary assessment is the first step of dietary modification in community-based interventional programs. This study was performed to validate a simple food frequency questionnaire (SFFQ) for assessment of selected food items in epidemiological studies with a large sample size as well as community trails. METHODS: This validation study was carried out on 264 healthy adults aged ≥ 41 years old living in 3 district central of Iran, including Isfahan, Najafabad, and Arak. Selected food intakes were assessed using a 48-item food frequency questionnaire (FFQ). The FFQ was interviewer-administered, which was completed twice; at the beginning of the study and 2 weeks thereafter. The validity of this SFFQ was examined compared to estimated amount by single 24 h dietary recall and 2 days dietary record. Validation of the FFQ was determined using Spearman correlation coefficients between daily frequency consumption of food groups as assessed by the FFQ and the qualitative amount of daily food groups intake accessed by dietary reference method was applied to evaluate validity. Intraclass correlation coefficients (ICC) were used to determine the reproducibility. RESULTS: Spearman correlation coefficient between the estimated amount of food groups intake by examined and reference methods ranged from 0.105 (P = 0.378) in pickles to 0.48 (P < 0.001) in plant protein. ICC for reproducibility of FFQ were between 0.47-0.69 in different food groups (P < 0.001). CONCLUSION: The designed SFFQ has a good relative validity and reproducibility for assessment of selected food groups intake. Thus, it can serve as a valid tool in epidemiological studies and clinical trial with large participants. Isfahan Cardiovascular Research Center, Isfahan University of Medical Sciences 2015-03 /pmc/articles/PMC4568199/ /pubmed/26405443 Text en © 2015 Isfahan Cardiovascular Research Center & Isfahan University of Medical Sciences http://creativecommons.org/licenses/by-nc/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly. |
spellingShingle | Original Article Mohammadifard, Noushin Sajjadi, Firouzeh Maghroun, Maryam Alikhasi, Hassan Nilforoushzadeh, Farzaneh Sarrafzadegan, Nizal Validation of a simplified food frequency questionnaire for the assessment of dietary habits in Iranian adults: Isfahan Healthy Heart Program, Iran |
title | Validation of a simplified food frequency questionnaire for the assessment of dietary habits in Iranian adults: Isfahan Healthy Heart Program, Iran |
title_full | Validation of a simplified food frequency questionnaire for the assessment of dietary habits in Iranian adults: Isfahan Healthy Heart Program, Iran |
title_fullStr | Validation of a simplified food frequency questionnaire for the assessment of dietary habits in Iranian adults: Isfahan Healthy Heart Program, Iran |
title_full_unstemmed | Validation of a simplified food frequency questionnaire for the assessment of dietary habits in Iranian adults: Isfahan Healthy Heart Program, Iran |
title_short | Validation of a simplified food frequency questionnaire for the assessment of dietary habits in Iranian adults: Isfahan Healthy Heart Program, Iran |
title_sort | validation of a simplified food frequency questionnaire for the assessment of dietary habits in iranian adults: isfahan healthy heart program, iran |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4568199/ https://www.ncbi.nlm.nih.gov/pubmed/26405443 |
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