Table 2.

Main characteristics of study participants

	PD (n = 20)	Controls (n = 30)	p
Age, years (mean ± SD)	73.1 ± 10.2	74.6 ± 4.3	0.1067
Sex (female), n (%)	9 (45)	16 (53)	0.4280
Number of disease conditions (mean ± SD)1	3.1 ± 1.6	2.9 ± 2.0	0.8046
Number of medications (mean ± SD)2	3.5 ± 1.3	2.8 ± 1.7	0.1034

¹Includes hypertension, coronary artery disease, prior stroke, peripheral vascular disease, diabetes, chronic obstructive pulmonary disease, and osteoarthritis

²Includes prescription and over-the-counter medications

PD, Parkinson’s disease; SD, standard deviation