Association between diet quality in adolescence and adulthood and knee symptoms in adulthood: a 25-year cohort study

摘要

We aimed to describe associations between diet quality in adolescence and adulthood and knee symptoms in adulthood. Two hundred seventy-five participants had adolescent diet measurements, 399 had adult diet measurements and 240 had diet measurements in both time points. 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 center dot 96) and dysMR 0 center dot 94). The overall adult DGI was not associated with knee symptoms; however, limiting saturated fat was associated with lower WOMAC (Pain: MR 0 center dot 93; stiffness: MR 0 center dot 93; dysfunction: MR 0 center dot 91), drinking water was associated with lower stiffness (MR 0 center dot 90) and fruit intake was associated with lower dysMR 0 center dot 90). Higher DGI for dairy products in adulthood was associated with higher WOMAC (Pain: MR 1 center dot 07; stiffness: MR 1 center dot 13; dysfunction: MR 1 center dot 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 center dot 89) and between score increase in fruit intake and lower dysMR 0 center dot 92). In conclusion, the overall diet quality in adolescence and adulthood was not associated with knee symptoms in adulthood. However, some diet components may affect later knee symptoms.

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