Table 1.

Characteristics of study participants according to quintiles of baseline serum urate (n=804).

	Quintile of baseline serum urate
	1	2	3	4	5	All
Serum urate (mg/dL)	<4.3	4.3–<5.1	5.1–<5.8	5.8–<6.7	>=6.7
N. of patients	177	157	147	169	154	804
Female %	74.6	44.6	25.2	15.4	14.3	35.7
Age (median)	57	60	59	61	60	59
BMI	25.0	26.2	27.8	28.7	29.9	27.5
Current smokers %	6.2	5.1	14.3	5.3	5.2	7.1
Gout %	0	0.6	0.7	1.2	5.2	1.5
Hypertension (% use of antihypertensive drugs)	19.8	26.8	36.1	37.3	57.1	35.0
Thiazides %	5.7	6.4	10.2	14.2	16.2	10.4
NSAIDs use %	27.7	29.3	29.9	20.7	30.5	27.5
Endpoint: Yes %	67.8	61.8	64.0	59.2	53.3	61.3
UPDRS rate of change during follow-up (mean)	16.9	17.0	14.8	14.1	14.3	14.9
% change in striatal β-CIT uptake (mean)	− 10	−9	−10	−8	−4	−8