Skip to main content

View full-text article in PMC

. Author manuscript; available in PMC: 2020 Aug 10.

Published in final edited form as: J Parkinsons Dis. 2020;10(2):505–510. doi: 10.3233/JPD-191882

Table 1.

Baseline characteristics of healthy controls (HC) and Parkinson’s disease patients (PD) in the Harvard Biomarkers Study

		HC	PD	p value
OVERALL	Sample Size	197	369
	Age	67.3 ± 10.3	66.3 ± 9.6	0.21
	Urate (mg/dL)	4.77 ± 1.29	4.56 ± 1.26	0.06
	Caffeine (mg/day)	230 ± 199	155 ± 161	<0.001
	BMI	26.9 ± 5.4	26.4 ± 4.8	0.34
MALES	Sample Size	75	236
	Age	70.3 ± 9.5	66.0 ± 10.0	0.001
	Urate (mg/dL)	5.34 ± 1.24	4.91 ± 1.18	0.007
	Caffeine (mg/day)	268 ± 205	165 ± 166	<0.001
	BMI	27.0 ± 3.6	26.8 ± 4.6	0.65
FEMALES	Sample Size	122	133
	Age	65.5 ± 10.4	66.7 ± 8.9	0.34
	Urate (mg/dL)	4.41 ± 1.19	3.93 ± 1.16	0.001
	Caffeine (mg/day)	206 ± 193	138 ± 151	0.002
	BMI	26.7 ± 6.2	25.8 ± 5.1	0.12