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Validity and Reproducibility of a Dietary Questionnaire for Consumption Frequencies of Foods during Pregnancy in the Born in Guangzhou Cohort Study (BIGCS)
This study aimed to examine the reproducibility and validity of a new food frequency questionnaire (FFQ) used in a birth cohort study to estimate the usual consumption frequencies of foods during pregnancy. The reference measure was the average of three inconsecutive 24 h diet recalls (24 HR) admini...
Autores principales: | , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4997369/ https://www.ncbi.nlm.nih.gov/pubmed/27483304 http://dx.doi.org/10.3390/nu8080454 |
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author | Yuan, Ming-Yang He, Jian-Rong Chen, Nian-Nian Lu, Jin-Hua Shen, Song-Ying Xiao, Wan-Qing Hu, Fang Xiao, Hui-Yun Wu, Yan-Yan Xia, Xiao-Yan Liu, Yu Qiu, Lan Wu, Ying-Fang Hu, Cui-Yue Xia, Hui-Min Qiu, Xiu |
author_facet | Yuan, Ming-Yang He, Jian-Rong Chen, Nian-Nian Lu, Jin-Hua Shen, Song-Ying Xiao, Wan-Qing Hu, Fang Xiao, Hui-Yun Wu, Yan-Yan Xia, Xiao-Yan Liu, Yu Qiu, Lan Wu, Ying-Fang Hu, Cui-Yue Xia, Hui-Min Qiu, Xiu |
author_sort | Yuan, Ming-Yang |
collection | PubMed |
description | This study aimed to examine the reproducibility and validity of a new food frequency questionnaire (FFQ) used in a birth cohort study to estimate the usual consumption frequencies of foods during pregnancy. The reference measure was the average of three inconsecutive 24 h diet recalls (24 HR) administrated between two FFQs, and the reproducibility was measured by repeating the first FFQ (FFQ1) approximately eight weeks later (FFQ2). A total of 210 pregnant women from the Born in Guangzhou Cohort Study (BIGCS) with full data were included in the analysis. The Spearman’s correlation coefficients of FFQ1 and FFQ2 ranged from 0.33 to 0.71. The intraclass correlation coefficients of the two FFQs ranged from 0.22 to 0.71. The Spearman’s correlation coefficients of the 24 HR and FFQ2 ranged from 0.23 to 0.62. Cross-classification analysis showed 65.1% of participants were classified into same and contiguous quintiles, while only 3.2% were misclassified into the distant quintiles. Bland-Altman methods showed good agreement for most food groups across the range of frequencies between FFQ1 and FFQ2. Our findings indicated that the reproducibility and validity of the FFQ used in BIGCS for assessing the usual consumption frequencies of foods during pregnancy were acceptable. |
format | Online Article Text |
id | pubmed-4997369 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-49973692016-08-26 Validity and Reproducibility of a Dietary Questionnaire for Consumption Frequencies of Foods during Pregnancy in the Born in Guangzhou Cohort Study (BIGCS) Yuan, Ming-Yang He, Jian-Rong Chen, Nian-Nian Lu, Jin-Hua Shen, Song-Ying Xiao, Wan-Qing Hu, Fang Xiao, Hui-Yun Wu, Yan-Yan Xia, Xiao-Yan Liu, Yu Qiu, Lan Wu, Ying-Fang Hu, Cui-Yue Xia, Hui-Min Qiu, Xiu Nutrients Article This study aimed to examine the reproducibility and validity of a new food frequency questionnaire (FFQ) used in a birth cohort study to estimate the usual consumption frequencies of foods during pregnancy. The reference measure was the average of three inconsecutive 24 h diet recalls (24 HR) administrated between two FFQs, and the reproducibility was measured by repeating the first FFQ (FFQ1) approximately eight weeks later (FFQ2). A total of 210 pregnant women from the Born in Guangzhou Cohort Study (BIGCS) with full data were included in the analysis. The Spearman’s correlation coefficients of FFQ1 and FFQ2 ranged from 0.33 to 0.71. The intraclass correlation coefficients of the two FFQs ranged from 0.22 to 0.71. The Spearman’s correlation coefficients of the 24 HR and FFQ2 ranged from 0.23 to 0.62. Cross-classification analysis showed 65.1% of participants were classified into same and contiguous quintiles, while only 3.2% were misclassified into the distant quintiles. Bland-Altman methods showed good agreement for most food groups across the range of frequencies between FFQ1 and FFQ2. Our findings indicated that the reproducibility and validity of the FFQ used in BIGCS for assessing the usual consumption frequencies of foods during pregnancy were acceptable. MDPI 2016-07-28 /pmc/articles/PMC4997369/ /pubmed/27483304 http://dx.doi.org/10.3390/nu8080454 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yuan, Ming-Yang He, Jian-Rong Chen, Nian-Nian Lu, Jin-Hua Shen, Song-Ying Xiao, Wan-Qing Hu, Fang Xiao, Hui-Yun Wu, Yan-Yan Xia, Xiao-Yan Liu, Yu Qiu, Lan Wu, Ying-Fang Hu, Cui-Yue Xia, Hui-Min Qiu, Xiu Validity and Reproducibility of a Dietary Questionnaire for Consumption Frequencies of Foods during Pregnancy in the Born in Guangzhou Cohort Study (BIGCS) |
title | Validity and Reproducibility of a Dietary Questionnaire for Consumption Frequencies of Foods during Pregnancy in the Born in Guangzhou Cohort Study (BIGCS) |
title_full | Validity and Reproducibility of a Dietary Questionnaire for Consumption Frequencies of Foods during Pregnancy in the Born in Guangzhou Cohort Study (BIGCS) |
title_fullStr | Validity and Reproducibility of a Dietary Questionnaire for Consumption Frequencies of Foods during Pregnancy in the Born in Guangzhou Cohort Study (BIGCS) |
title_full_unstemmed | Validity and Reproducibility of a Dietary Questionnaire for Consumption Frequencies of Foods during Pregnancy in the Born in Guangzhou Cohort Study (BIGCS) |
title_short | Validity and Reproducibility of a Dietary Questionnaire for Consumption Frequencies of Foods during Pregnancy in the Born in Guangzhou Cohort Study (BIGCS) |
title_sort | validity and reproducibility of a dietary questionnaire for consumption frequencies of foods during pregnancy in the born in guangzhou cohort study (bigcs) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4997369/ https://www.ncbi.nlm.nih.gov/pubmed/27483304 http://dx.doi.org/10.3390/nu8080454 |
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