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The association between dietary fiber intake and osteoarthritis: a cross-sectional study from the 1999–2018 U.S. National Health and Nutrition Examination Survey
How fiber intake is linked to osteoarthritis in U.S. adults from 1999 to 2018
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Abstract
Among 30,620 participants, 5.74% were diagnosed with (OA).
- An inverse association was observed between intake and the risk of OA, with an odds ratio of 0.99.
- The highest quartile of dietary fiber intake was linked to a 27% lower risk of OA compared to the lowest quartile.
- A non-linear relationship was suggested, indicating that a dietary fiber intake between 14.4 and 26.7 grams may reduce OA risk.
- Intake levels above this range did not show significant additional protective effects against OA.
- Further studies are needed to validate these associations.
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Key numbers
1,864 of 32,484 participants
Prevalence
Total participants included in the study
27%
Risk Reduction
Comparison of highest quartile of intake vs. lowest quartile
14.4–26.7 g
Intake Range
Threshold effect interval for intake