Rheumatology · 3 h ago
NHANES analysis links dietary patterns with rheumatoid arthritis status in people with anxiety
A cross-sectional analysis of seven NHANES cycles used machine-learning models to classify rheumatoid arthritis status among participants with medication-defined treated anxiety. Several nutrients and food groups contributed negatively to model predictions, but the findings are associative and need confirmation before they can inform dietary guidance.
- Cross-sectional analysis of NHANES data from 2005–2018
- Random Forest had the highest observed AUC
- Several nutrients and food groups contributed negatively to classification
- Prospective or randomized studies are needed
Researchers analyzed data from seven NHANES cycles (2005–2018), using dietary recalls and a complementary food-group classification based on the USDA MyPyramid Equivalents Database. Among participants with medication-defined treated anxiety, six machine-learning models were developed to classify rheumatoid arthritis status from dietary features. The MyPyramid analysis reclassified the same NHANES dietary data; it was not an independent validation cohort.
Random Forest had the highest observed area under the receiver operating characteristic curve across both dietary representations. In post-hoc model interpretation, calcium, lycopene, folate and vitamin D were prominent negative contributors to rheumatoid arthritis-positive classification. Fruits, dairy products and seafood rich in omega-3 fatty acids also contributed negatively. The supplied report does not provide participant numbers or AUC values.
These model-derived associations do not establish that specific foods or nutrients prevent rheumatoid arthritis. The cross-sectional design cannot establish temporality or causation, and the authors say prospective cohorts or randomized trials are needed before the findings can inform dietary guidelines.
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BMC Public Health: Machine learning–driven identification of whole-food dietary patterns associated with anxiety and rheumatoid arthritis comorbidity patterns: evidence from the NHANES and the USDA MyPyramid Equivalents database ↗This is an automated AI-condensed summary that has not yet been reviewed by an editor. Always consult the full item at the original source.