Research Article
The Effects of Uric Acid, Serum Vitamin D3, and Their Interaction on Parkinson’s Disease Severity
Table 2
The bivariate correlation between serum vitamin D3, UA levels, duration of disease and UPDRS, and Hoehn and Yahr scores in total sample and different age and sex groups.
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UPDRS: Unified Parkinson’s Disease Rating Scale III; UA: uric acid; H&Y: Hoehn and Yahr. The presented values are Spearman rank correlation coefficient. *The correlations are significant at . |