The Effects of Uric Acid, Serum Vitamin D3, and Their Interaction on Parkinson’s Disease Severity

Table 3

Distribution of Hoehn and Yahr levels in different levels of UA at two levels of serum vitamin D3 in total study samples.

	Hoehn and Yahr categories			value^2
	Category 1 (1–1.5)	Category 2 (2)	Category 3 (>2.4)
Serum vitamin D3 (1)^a
UA^1 (mg/dL)
≤5.4	16 (48.5)	8 (24.2)	9 (27.3)	0.173
>5.4	10 (43.5)	2 (8.7)	11 (47.8)
Serum vitamin D3 (2)^b
UA (mg/dL)
≤5.4	12 (44.4)	9 (33.3)	6 (22.2)	0.298
>5.4	9 (31)	8 (27.6)	12 (41.4)

UA: uric acid (5.4 is the median value); ²resulting from Chi-square test; ^adeficiency levels; ^binsufficiency levels. All presented values are number (percent).