Reliability and validity of a semi-quantitative food frequency questionnaire: dietary intake assessment among multi-ethnic populations in Northwest China
Abstract Background Few multi-ethnic dietary culture-sensitive food frequency questionnaires (FFQ) have been developed due to the complexity and diversity of cooking methods and styles. This study aimed to develop and validate a specific FFQ among multi-ethnic groups in Northwest China. Methods In t...
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BMC
2023-10-01
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| Series: | Journal of Health, Population and Nutrition |
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| Online Access: | https://doi.org/10.1186/s41043-023-00452-9 |
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| author | Leilei Zhai Huiyue Pan Hanqi Cao Shupeng Zhao Ping Yao |
| author_facet | Leilei Zhai Huiyue Pan Hanqi Cao Shupeng Zhao Ping Yao |
| author_sort | Leilei Zhai |
| collection | DOAJ |
| description | Abstract Background Few multi-ethnic dietary culture-sensitive food frequency questionnaires (FFQ) have been developed due to the complexity and diversity of cooking methods and styles. This study aimed to develop and validate a specific FFQ among multi-ethnic groups in Northwest China. Methods In the reliability study, 139 participants aged 20–65 completed two identical FFQs separated by 3 months. The relative validation of the FFQ was assessed by three 24-h recalls (24HR) employed in the interval of two FFQs, as a reference. Stratified analyses were also conducted by the major ethnic groups (Han nationality or Ethnic minority). Results For reproducibility, the median (range) of Spearman’s correlation coefficients (SCC) was 0.71 (0.43–0.84) for nutrients. The intra-class correlation coefficients (ICC) covered a spectrum from 0.39 to 0.78 (median: 0.64). Meanwhile, the weighted kappa values ranged from 0.11 to 0.64. For validity, the median (range) of Pearson’s correlation coefficients derived from the energy unadjusted and the adjusted values between FFQ and 24HR were 0.61 (0.12–0.79) and 0.56 (0.12–0.77), respectively. The results of correlation coefficients were similar between the two ethnic groups. Moreover, the Bland–Altman plots likewise demonstrated a satisfactory level of agreement between the two methods. Conclusions The FFQ showed acceptable reproducibility and moderate relative validity for evaluating dietary intake among multi-ethnic groups in northwest China. It could be a credible nutritional screening tool for forthcoming epidemiological surveys of these populations. |
| first_indexed | 2024-03-09T15:05:16Z |
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| id | doaj.art-be951fdff82f4d1195cb04dcfadc0d8a |
| institution | Directory Open Access Journal |
| issn | 2072-1315 |
| language | English |
| last_indexed | 2024-03-09T15:05:16Z |
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| series | Journal of Health, Population and Nutrition |
| spelling | doaj.art-be951fdff82f4d1195cb04dcfadc0d8a2023-11-26T13:41:49ZengBMCJournal of Health, Population and Nutrition2072-13152023-10-0142111110.1186/s41043-023-00452-9Reliability and validity of a semi-quantitative food frequency questionnaire: dietary intake assessment among multi-ethnic populations in Northwest ChinaLeilei Zhai0Huiyue Pan1Hanqi Cao2Shupeng Zhao3Ping Yao4The First Department of Gastroenterology, The First Affiliated Hospital of Xinjiang Medical UniversityThe First Department of Gastroenterology, The First Affiliated Hospital of Xinjiang Medical UniversityThe First Department of Gastroenterology, The First Affiliated Hospital of Xinjiang Medical UniversityThe First Department of Gastroenterology, The First Affiliated Hospital of Xinjiang Medical UniversityThe First Department of Gastroenterology, The First Affiliated Hospital of Xinjiang Medical UniversityAbstract Background Few multi-ethnic dietary culture-sensitive food frequency questionnaires (FFQ) have been developed due to the complexity and diversity of cooking methods and styles. This study aimed to develop and validate a specific FFQ among multi-ethnic groups in Northwest China. Methods In the reliability study, 139 participants aged 20–65 completed two identical FFQs separated by 3 months. The relative validation of the FFQ was assessed by three 24-h recalls (24HR) employed in the interval of two FFQs, as a reference. Stratified analyses were also conducted by the major ethnic groups (Han nationality or Ethnic minority). Results For reproducibility, the median (range) of Spearman’s correlation coefficients (SCC) was 0.71 (0.43–0.84) for nutrients. The intra-class correlation coefficients (ICC) covered a spectrum from 0.39 to 0.78 (median: 0.64). Meanwhile, the weighted kappa values ranged from 0.11 to 0.64. For validity, the median (range) of Pearson’s correlation coefficients derived from the energy unadjusted and the adjusted values between FFQ and 24HR were 0.61 (0.12–0.79) and 0.56 (0.12–0.77), respectively. The results of correlation coefficients were similar between the two ethnic groups. Moreover, the Bland–Altman plots likewise demonstrated a satisfactory level of agreement between the two methods. Conclusions The FFQ showed acceptable reproducibility and moderate relative validity for evaluating dietary intake among multi-ethnic groups in northwest China. It could be a credible nutritional screening tool for forthcoming epidemiological surveys of these populations.https://doi.org/10.1186/s41043-023-00452-9ReproducibilityValidityFood frequency questionnaireDietary assessmentMulti-ethnic populations |
| spellingShingle | Leilei Zhai Huiyue Pan Hanqi Cao Shupeng Zhao Ping Yao Reliability and validity of a semi-quantitative food frequency questionnaire: dietary intake assessment among multi-ethnic populations in Northwest China Journal of Health, Population and Nutrition Reproducibility Validity Food frequency questionnaire Dietary assessment Multi-ethnic populations |
| title | Reliability and validity of a semi-quantitative food frequency questionnaire: dietary intake assessment among multi-ethnic populations in Northwest China |
| title_full | Reliability and validity of a semi-quantitative food frequency questionnaire: dietary intake assessment among multi-ethnic populations in Northwest China |
| title_fullStr | Reliability and validity of a semi-quantitative food frequency questionnaire: dietary intake assessment among multi-ethnic populations in Northwest China |
| title_full_unstemmed | Reliability and validity of a semi-quantitative food frequency questionnaire: dietary intake assessment among multi-ethnic populations in Northwest China |
| title_short | Reliability and validity of a semi-quantitative food frequency questionnaire: dietary intake assessment among multi-ethnic populations in Northwest China |
| title_sort | reliability and validity of a semi quantitative food frequency questionnaire dietary intake assessment among multi ethnic populations in northwest china |
| topic | Reproducibility Validity Food frequency questionnaire Dietary assessment Multi-ethnic populations |
| url | https://doi.org/10.1186/s41043-023-00452-9 |
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