Initiating the PREPARED project : a digital dietary intervention for preconception young adults – protocol development, validation of dietary methods, and DOHaD knowledge-diet quality insights
Doctoral thesis
Published version
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https://hdl.handle.net/11250/3112932Utgivelsesdato
2024Metadata
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- Doctoral Dissertations [376]
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Originalversjon
Salvesen, L. (2024). Initiating the PREPARED project: a digital dietary intervention for preconception young adults – protocol development, validation of dietary methods, and DOHaD knowledge-diet quality insights [Doctoral dissertation]. University of Agder.Sammendrag
Background The Developmental Origins of Health and Disease (DOHaD) theory suggests that environmental exposures during critical developmental periods can profoundly affect long-term health and disease risk of both the individual and subsequent generations. Within the theory of DOHaD, maintaining a healthy diet offers a triple dividend in health, encompassing short- and long-term health of the individual and potential benefits for future generations. An individual’s diet and nutrition before conceiving a child is commonly referred to as preconception nutrition. Adopting a public health perspective on preconception nutrition is essential for promoting a healthier future, as it sets the foundation for long-term health and lifestyle behaviours that can significantly influence the prospect of future offspring health. Aims and objectives The current thesis aimed to plan and establish the basis for the PREPARED project, with a specific emphasis on validating dietary assessment methods to be utilized throughout the entire project, while also conducting a specific analysis of DOHaD knowledge and diet quality on the baseline data. This was to be accomplished through four specific objectives: (a) develop a study protocol outlining the research process for the PREPARED project, (b) develop digital food item image-series to aid portion size estimation accuracy in a 24-hour dietary recall system to be used in PREPARED project, and validate their accuracy by comparing them with pre-weighed food portions, (c) validate a dietary screener against a semi-quantitative food frequency questionnaire (FFQ) for rapid dietary assessment in the PREPARED project, and (d) assess preconception young adults’ DOHaD knowledge and diet quality, and the association between the two, using the baseline data from the PREPARED study.
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Paper I: Øverby, N. C., Medin, A. C., Valen, E. L., Salvesen, L., Wills, A. K., Engeset, D., Vik, F. N. & Hillesund, E. R. (2021). Effectiveness of a digital dietary intervention program targeting young adults before parenthood: protocol for the PREPARED randomised controlled trial. BMJ Open, 11 (12). http://dx.doi.org/10.1136/bmjopen-2021-055116. Published version. Full-text is available in AURA as a separate file: https://hdl.handle.net/11250/2838927Paper II: Salvesen, L., Engeset, D., Øverby, N. C. & Medin, A. C. (2021). Development and evaluation of image-series for portion size estimation in dietary assessment among adults. Journal of Nutritional Science (JNS), 10. https://doi.org/10.1017/jns.2020.58. Published version. Full-text is available in AURA as a separate file: https://hdl.handle.net/11250/2739534
Paper III: Salvesen, L., Wills, A. K., Øverby, N. C., Engeset, D., & Medin, A. C. (2023). Relative validity of a non-quantitative 33-item dietary screener with a semi-quantitative food frequency questionnaire among young adults. Journal of Nutritional Science, 12(72), 11-13. https://doi.org/10.1017/jns.2023.57. Published version. Full-text is not available in AURA as a separate file.
Paper IV: Salvesen, L., Valen, E. N., Wills, A. K., Hillesund, E. R., Vik, F. N., Engeset, D., Øverby, N. C., & Medin, A. C. (2023). Developmental Origins of Health and Disease knowledge is associated with diet quality in preconception young adult men and women. Journal of Developmental Origins of Health and Disease, 14(5), 631–638. https://doi.org/10.1017/S2040174423000314. Published version. Full-text is not available in AURA as a separate file.