Characterising the reproducibility and reliability of dietary patterns among Yup'ik Alaska Native people
FFQ data can be used to characterise dietary patterns for diet–disease association studies. In the present study, we evaluated three previously defined dietary patterns – ‘subsistence foods’, market-based ‘processed foods’ and ‘fruits and vegetables’ – among a sample of Yup'ik people from South...
Published in: | British Journal of Nutrition |
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Cambridge University Press (CUP)
2015
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Online Access: | http://dx.doi.org/10.1017/s0007114514003596 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0007114514003596 |
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crcambridgeupr:10.1017/s0007114514003596 2024-06-23T07:57:27+00:00 Characterising the reproducibility and reliability of dietary patterns among Yup'ik Alaska Native people Ryman, Tove K. Boyer, Bert B. Hopkins, Scarlett Philip, Jacques O'Brien, Diane Thummel, Kenneth Austin, Melissa A. 2015 http://dx.doi.org/10.1017/s0007114514003596 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0007114514003596 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms British Journal of Nutrition volume 113, issue 4, page 634-643 ISSN 0007-1145 1475-2662 journal-article 2015 crcambridgeupr https://doi.org/10.1017/s0007114514003596 2024-06-05T04:04:45Z FFQ data can be used to characterise dietary patterns for diet–disease association studies. In the present study, we evaluated three previously defined dietary patterns – ‘subsistence foods’, market-based ‘processed foods’ and ‘fruits and vegetables’ – among a sample of Yup'ik people from Southwest Alaska. We tested the reproducibility and reliability of the dietary patterns, as well as the associations of these patterns with dietary biomarkers and participant characteristics. We analysed data from adult study participants who completed at least one FFQ with the Center for Alaska Native Health Research 9/2009–5/2013. To test the reproducibility of the dietary patterns, we conducted a confirmatory factor analysis (CFA) of a hypothesised model using eighteen food items to measure the dietary patterns ( n 272). To test the reliability of the dietary patterns, we used the CFA to measure composite reliability ( n 272) and intra-class correlation coefficients for test–retest reliability ( n 113). Finally, to test the associations, we used linear regression ( n 637). All factor loadings, except one, in CFA indicated acceptable correlations between foods and dietary patterns ( r >0·40), and model-fit criteria were >0·90. Composite and test–retest reliability of the dietary patterns were, respectively, 0·56 and 0·34 for ‘subsistence foods’, 0·73 and 0·66 for ‘processed foods’, and 0·72 and 0·54 for ‘fruits and vegetables’. In the multi-predictor analysis, the dietary patterns were significantly associated with dietary biomarkers, community location, age, sex and self-reported lifestyle. This analysis confirmed the reproducibility and reliability of the dietary patterns in the present study population. These dietary patterns can be used for future research and development of dietary interventions in this underserved population. Article in Journal/Newspaper Yup'ik Alaska Cambridge University Press British Journal of Nutrition 113 4 634 643 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
FFQ data can be used to characterise dietary patterns for diet–disease association studies. In the present study, we evaluated three previously defined dietary patterns – ‘subsistence foods’, market-based ‘processed foods’ and ‘fruits and vegetables’ – among a sample of Yup'ik people from Southwest Alaska. We tested the reproducibility and reliability of the dietary patterns, as well as the associations of these patterns with dietary biomarkers and participant characteristics. We analysed data from adult study participants who completed at least one FFQ with the Center for Alaska Native Health Research 9/2009–5/2013. To test the reproducibility of the dietary patterns, we conducted a confirmatory factor analysis (CFA) of a hypothesised model using eighteen food items to measure the dietary patterns ( n 272). To test the reliability of the dietary patterns, we used the CFA to measure composite reliability ( n 272) and intra-class correlation coefficients for test–retest reliability ( n 113). Finally, to test the associations, we used linear regression ( n 637). All factor loadings, except one, in CFA indicated acceptable correlations between foods and dietary patterns ( r >0·40), and model-fit criteria were >0·90. Composite and test–retest reliability of the dietary patterns were, respectively, 0·56 and 0·34 for ‘subsistence foods’, 0·73 and 0·66 for ‘processed foods’, and 0·72 and 0·54 for ‘fruits and vegetables’. In the multi-predictor analysis, the dietary patterns were significantly associated with dietary biomarkers, community location, age, sex and self-reported lifestyle. This analysis confirmed the reproducibility and reliability of the dietary patterns in the present study population. These dietary patterns can be used for future research and development of dietary interventions in this underserved population. |
format |
Article in Journal/Newspaper |
author |
Ryman, Tove K. Boyer, Bert B. Hopkins, Scarlett Philip, Jacques O'Brien, Diane Thummel, Kenneth Austin, Melissa A. |
spellingShingle |
Ryman, Tove K. Boyer, Bert B. Hopkins, Scarlett Philip, Jacques O'Brien, Diane Thummel, Kenneth Austin, Melissa A. Characterising the reproducibility and reliability of dietary patterns among Yup'ik Alaska Native people |
author_facet |
Ryman, Tove K. Boyer, Bert B. Hopkins, Scarlett Philip, Jacques O'Brien, Diane Thummel, Kenneth Austin, Melissa A. |
author_sort |
Ryman, Tove K. |
title |
Characterising the reproducibility and reliability of dietary patterns among Yup'ik Alaska Native people |
title_short |
Characterising the reproducibility and reliability of dietary patterns among Yup'ik Alaska Native people |
title_full |
Characterising the reproducibility and reliability of dietary patterns among Yup'ik Alaska Native people |
title_fullStr |
Characterising the reproducibility and reliability of dietary patterns among Yup'ik Alaska Native people |
title_full_unstemmed |
Characterising the reproducibility and reliability of dietary patterns among Yup'ik Alaska Native people |
title_sort |
characterising the reproducibility and reliability of dietary patterns among yup'ik alaska native people |
publisher |
Cambridge University Press (CUP) |
publishDate |
2015 |
url |
http://dx.doi.org/10.1017/s0007114514003596 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0007114514003596 |
genre |
Yup'ik Alaska |
genre_facet |
Yup'ik Alaska |
op_source |
British Journal of Nutrition volume 113, issue 4, page 634-643 ISSN 0007-1145 1475-2662 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0007114514003596 |
container_title |
British Journal of Nutrition |
container_volume |
113 |
container_issue |
4 |
container_start_page |
634 |
op_container_end_page |
643 |
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1802651096043225088 |