Observational analysis shows significant association of sleep disorders with rheumatoid arthritis prevalence in U.S. adults, pointing to biological pathways involved.
In conclusion, our findings indicate a statistically significant association between sleep disorders and the prevalence of RA in U.S. adults. However, given the limitations of the cross-sectional design, causal inferences cannot be made. Future longitudinal and mechanistic studies are warranted to clarify the temporal direction and biological pathways underlying this association.
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Zheng et al. (2025) studied this question.
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