ArticleClinical rheumatology2026
Age-specific associations between per- and polyfluoroalkyl substance exposure and osteoarthritis: a cross-sectional study.
Article in Clinical rheumatology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
6 authors.
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Abstract
objectivesThe relationship between per- and polyfluoroalkyl substances (PFAS) and osteoarthritis (OA) remains unclear. This study aims to assess the association analyzing data from the NHANES 2003-2018 cycles.
methodsWeighted multiple logistic regression and mixture analysis models were employed to evaluate the relationship between PFAS exposure and OA risk, with subgroup analyses conducted by age and sex. Mediation model was used to examine the potential mediating effect on the association between PFAS exposure and OA risk. Additionally, several sensitivity analyses were conducted.
resultsThe study included 9584 participants, of whom 1042 had OA. Weighted logistic regression analysis showed a significant negative association between serum concentrations of perfluorooctanoic acid, perfluorooctane sulfonic acid, perfluorodecanoic acid, perfluoroundecanoic acid, and OA risk, with this association being more pronounced in individuals aged 60 and older. In the mixture analysis models, mixed exposure to PFAS was also negatively associated with OA risk; this correlation was significant in the population aged over 60. Sensitivity analysis results were similar. Additionally, mediation analysis did not find a significant mediating effect.
conclusionsExposure to PFAS is negatively associated with OA risk, with this association being significant in individuals aged 60 and older. To strengthen the current evidence, further comprehensive studies should be conducted. Key Points • Single PFAS exposure is associated with a reduced risk of osteoarthritis. • PFAS-mixed exposure may be negatively associated with the risk of osteoarthritis. • PFAS exposure has a more significant impact on elderly osteoarthritis patients.
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