The Reproducibility and Relative Validity of a Food Frequency Questionnaire for Identifying Iron-Related Dietary Patterns in Pregnant Women
Analyzing pregnant women’s iron intake using dietary patterns would provide information that considers dietary relationships with other nutrients and their sources. The objective of this study was to evaluate the reproducibility and relative validity of a Qualitative Food Frequency Questionnaire to...
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MDPI AG
2022-05-01
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| Series: | Nutrients |
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| Online Access: | https://www.mdpi.com/2072-6643/14/11/2313 |
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| author | Mayra Lizeth Navarro-Padilla María Fernanda Bernal-Orozco Joan Fernández-Ballart Barbara Vizmanos Norma Patricia Rodríguez-Rocha Gabriela Macedo-Ojeda |
| author_facet | Mayra Lizeth Navarro-Padilla María Fernanda Bernal-Orozco Joan Fernández-Ballart Barbara Vizmanos Norma Patricia Rodríguez-Rocha Gabriela Macedo-Ojeda |
| author_sort | Mayra Lizeth Navarro-Padilla |
| collection | DOAJ |
| description | Analyzing pregnant women’s iron intake using dietary patterns would provide information that considers dietary relationships with other nutrients and their sources. The objective of this study was to evaluate the reproducibility and relative validity of a Qualitative Food Frequency Questionnaire to identify iron-related dietary patterns (FeP-FFQ) among Mexican pregnant women. A convenience sample of pregnant women (<i>n</i> = 110) completed two FeP-FFQ (FeP-FFQ1 and FeP-FFQ2) and a 3-day diet record (3DDR). Foods appearing in the 3DDR were classified into the same food groupings as the FeP-FFQ, and most consumed foods were identified. Exploratory factor analysis was used to determine dietary patterns. Scores were compared (FeP-FFQ for reproducibility and FeP-FFQ1 vs. 3DDR for validity) through intraclass correlation coefficients (ICC), cross-classification, Bland–Altman analysis, and weighed Cohen kappa (κw), using dietary patterns scores tertiles. Two dietary patterns were identified: “healthy” and “processed foods and dairy”. ICCs (<i>p</i> < 0.01) for “healthy” pattern and “processed foods and dairy” pattern were 0.76 for and 0.71 for reproducibility, and 0.36 and 0.37 for validity, respectively. Cross-classification and Bland–Altman analysis showed good agreement for reproducibility and validity; κw values showed moderate agreement for reproducibility and low agreement for validity. In conclusion, the FeP-FFQ showed good indicators of reproducibility and validity to identify dietary patterns related to iron intake among pregnant women. |
| first_indexed | 2024-03-10T01:00:09Z |
| format | Article |
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| language | English |
| last_indexed | 2024-03-10T01:00:09Z |
| publishDate | 2022-05-01 |
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| series | Nutrients |
| spelling | doaj.art-eef267b8ef41424284146a7ea9202b072023-11-23T14:37:03ZengMDPI AGNutrients2072-66432022-05-011411231310.3390/nu14112313The Reproducibility and Relative Validity of a Food Frequency Questionnaire for Identifying Iron-Related Dietary Patterns in Pregnant WomenMayra Lizeth Navarro-Padilla0María Fernanda Bernal-Orozco1Joan Fernández-Ballart2Barbara Vizmanos3Norma Patricia Rodríguez-Rocha4Gabriela Macedo-Ojeda5Health Sciences University Center, University of Guadalajara, Guadalajara 44340, MexicoInstitute of Translational Nutrigenetics and Nutrigenomics, Department of Clinics of Human and Health Reproduction, Growth and Child Development, Health Sciences University Center, University of Guadalajara, Guadalajara 44340, MexicoArea of Preventive Medicine and Public Health, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili, IISPV, 43201 Reus, SpainInstitute of Translational Nutrigenetics and Nutrigenomics, Department of Clinics of Human and Health Reproduction, Growth and Child Development, Health Sciences University Center, University of Guadalajara, Guadalajara 44340, MexicoDepartment of Public Health, Regional Institute for Public Health Research, Health Sciences University Center, University of Guadalajara, Guadalajara 44340, MexicoDepartment of Public Health, Institute of Research in Biomedical Sciences, Health Sciences University Center, University of Guadalajara, Guadalajara 44340, MexicoAnalyzing pregnant women’s iron intake using dietary patterns would provide information that considers dietary relationships with other nutrients and their sources. The objective of this study was to evaluate the reproducibility and relative validity of a Qualitative Food Frequency Questionnaire to identify iron-related dietary patterns (FeP-FFQ) among Mexican pregnant women. A convenience sample of pregnant women (<i>n</i> = 110) completed two FeP-FFQ (FeP-FFQ1 and FeP-FFQ2) and a 3-day diet record (3DDR). Foods appearing in the 3DDR were classified into the same food groupings as the FeP-FFQ, and most consumed foods were identified. Exploratory factor analysis was used to determine dietary patterns. Scores were compared (FeP-FFQ for reproducibility and FeP-FFQ1 vs. 3DDR for validity) through intraclass correlation coefficients (ICC), cross-classification, Bland–Altman analysis, and weighed Cohen kappa (κw), using dietary patterns scores tertiles. Two dietary patterns were identified: “healthy” and “processed foods and dairy”. ICCs (<i>p</i> < 0.01) for “healthy” pattern and “processed foods and dairy” pattern were 0.76 for and 0.71 for reproducibility, and 0.36 and 0.37 for validity, respectively. Cross-classification and Bland–Altman analysis showed good agreement for reproducibility and validity; κw values showed moderate agreement for reproducibility and low agreement for validity. In conclusion, the FeP-FFQ showed good indicators of reproducibility and validity to identify dietary patterns related to iron intake among pregnant women.https://www.mdpi.com/2072-6643/14/11/2313pregnancydietary iron intakedietary patternsfood frequency questionnairereproducibilityrelative validity |
| spellingShingle | Mayra Lizeth Navarro-Padilla María Fernanda Bernal-Orozco Joan Fernández-Ballart Barbara Vizmanos Norma Patricia Rodríguez-Rocha Gabriela Macedo-Ojeda The Reproducibility and Relative Validity of a Food Frequency Questionnaire for Identifying Iron-Related Dietary Patterns in Pregnant Women Nutrients pregnancy dietary iron intake dietary patterns food frequency questionnaire reproducibility relative validity |
| title | The Reproducibility and Relative Validity of a Food Frequency Questionnaire for Identifying Iron-Related Dietary Patterns in Pregnant Women |
| title_full | The Reproducibility and Relative Validity of a Food Frequency Questionnaire for Identifying Iron-Related Dietary Patterns in Pregnant Women |
| title_fullStr | The Reproducibility and Relative Validity of a Food Frequency Questionnaire for Identifying Iron-Related Dietary Patterns in Pregnant Women |
| title_full_unstemmed | The Reproducibility and Relative Validity of a Food Frequency Questionnaire for Identifying Iron-Related Dietary Patterns in Pregnant Women |
| title_short | The Reproducibility and Relative Validity of a Food Frequency Questionnaire for Identifying Iron-Related Dietary Patterns in Pregnant Women |
| title_sort | reproducibility and relative validity of a food frequency questionnaire for identifying iron related dietary patterns in pregnant women |
| topic | pregnancy dietary iron intake dietary patterns food frequency questionnaire reproducibility relative validity |
| url | https://www.mdpi.com/2072-6643/14/11/2313 |
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