Relationships between vitamin C intake and COPD assessed by machine learning approaches from the NHANES (2017-2023).

Front Nutr · 2025 · PMC12119308 · PMID 40444249

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showed a trendno p-value reported

In the unadjusted model, groups with higher vitamin C intake (Q3, Q4) all showed a trend of reduced COPD risk.

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highly significantno p-value reported

This ratio serves as one of the crucial markers for diagnosing COPD and is also highly significant for evaluating the severity of the disease and tracking its progression ( 25 ).

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