TABLE 1.

Demographic characteristics of Parkinson’s disease patients

	Possible PD			Probable PD
	N	Males	Females	N	Males	Females
Total	162	92 (56.8)	70 (43.2)	31	19 (61.3)	12 (38.7)
Age at diagnosis (yr)
<60	37	22 (59.5)	15 (40.5)	6	3 (50.0)	3 (50.0)
60–69	39	27 (69.2)	12 (30.8)	7	4 (57.1)	3 (42.9)
70–79	69	32 (46.4)	37 (53.6)	13	8 (61.5)	5 (38.5)
>80	17	11 (64.7)	6 (35.3)	5	4 (80.0)	1 (20.0)
Race/ethnicity
Caucasian	137	75 (54.7)	62 (45.3)	26	16 (60.0)	10 (40.0)
Hispanic/Latino	15	11 (73.3)	4 (26.7)	3	1 (33.30)	2 (66.7)
Asian	1	0 (0)	1 (100)	0	0 (0)	0 (0)
Native American	9	6 (66.7)	3 (33.3)	1	1 (100)	0 (0)
African–American	0	0 (0)	0 (0)	1	0 (0)	1 (100)

Values are expressed as n (%), unless otherwise indicated.

PD, Parkinson’s disease.