Table 1.

Demographics and Mutation Frequency

	All subjects (n=104)	All Hispanics (n=19)	Puerto Ricans (n=8)	Non-Puerto Rican Hispanics (n=11)	Non-Hispanic Caucasians (n=85)
Gender, % Female (n)	50.96% (53)	52.63% (10)	60% (6)	47.06% (8)	50.59% (43)
Age at PD onset, mean ± SD**	53.37±12.31	54.58±12.90	54.0 ± 12.32	55.0 ± 13.89	53.09 ± 12.23
LRRK2mutation, % positive (n)*	2.88% (3)	10.53% (2)	25% (2)	0% (0)	1.18% (1)
Family History of PD	31.37% (32/102)	22.22% (4/18)	25% (2/8)	20% (2/10)	33.33% (28/84)

^*Proband reported family history of Parkinson disease in first, second or third degree relatives, data not available for three subjects;

^**Age onset unknown for three subjects