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Abstract

We aimed to describe associations between diet quality in adolescence and adulthood and knee symptoms in adulthood. 275 participants had adolescent diet measurements, 399 had adult diet measurements, and 240 had diet measurements in both timepoints. Diet quality was assessed by Dietary Guidelines Index (DGI), reflecting adherence to Australian Dietary Guidelines. Knee symptoms were collected using Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Data were analysed using zero-inflated negative binomial regressions. The overall adolescent DGI was not associated with adult knee symptoms, although lower intake of discretionary foods (e.g. cream, alcohol, bacon, and cake) in adolescence was associated with lower pain (Mean ratio (MR): 0.96) and dysfunction (MR: 0.94). The overall adult DGI was not associated with knee symptoms; however, limiting saturated fat was associated with lower WOMAC (Pain: MR 0.93; stiffness: MR 0.93; dysfunction: MR 0.91), drinking water was associated with lower stiffness (MR 0.90) and fruit intake was associated with lower dysfunction (MR 0.90). Higher DGI for dairy in adulthood was associated with higher WOMAC (Pain: MR 1.07; stiffness: MR 1.13; dysfunction: MR 1.11). Additionally, the score increases from adolescence to adulthood were not associated with adult knee symptoms, except for associations between score increase in limiting saturated fat and lower stiffness (MR 0.89) and between score increase in fruit intake and lower dysfunction (MR 0.92). In conclusion, the overall diet quality in adolescence and adulthood were not associated with knee symptoms in adulthood. However, some diet components may affect later knee symptoms.

Item Type:	Article
Authors/Creators:	Meng, T and Wilson, JE and Venn, A and Cicuttini, F and March, L and Cross, M and Dwyer, T and Blizzard, L and Jones, G and Laslett, LL and Eathakkattu Antony, BS and Ding, C
Keywords:	diet quality, adolescence, adulthood, knee symptoms, osteoarthritis
Journal or Publication Title:	The British Journal of Nutrition
Publisher:	C A B I Publishing
ISSN:	0007-1145
DOI / ID Number:	https://doi.org/10.1017/S0007114521002658
Copyright Information:	© The Author(s), 2021. Published by Cambridge University Press on behalf of The Nutrition Society
Related URLs:	Google Scholar: Venn, A UTAS Profile: Venn, A UTAS Profile: Blizzard, L Google Scholar: Jones, G UTAS Profile: Jones, G Google Scholar: Laslett, LL UTAS Profile: Laslett, LL Google Scholar: Eathakkattu Antony, BS Google Scholar: Ding, C UTAS Profile: Ding, C
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