Table 4.

Percentage of participants correctly answering PD knowledge items

Knowledge Item	African- American (n=47)	Chinese- American (n=45)	White (n=62)	Support group member (n=52)	p-value
More common in elderly	44.7	46.7	46.8	75.0	<0.01
Blood test is available	17.0	13.3	8.1	84.6	<0.01
Cause unknown	38.3	28.9	43.6	69.2	<0.01
Contagious	57.5	37.8	62.9	100	<0.01
Tremor is main symptom	48.9	51.1	54.8	71.2	0.10
Memory loss is main symptom	29.8	15.6	25.8	51.9	<0.01
Slowness is main symptom	48.9	46.7	43.6	78.8	<0.01
Medications help symptoms	63.8	33.3	59.7	90.4	<0.01
Exercise helps symptoms	46.8	42.2	37.1	98.1	<0.01
Diet helps symptoms	19.1	13.3	12.9	13.5	0.79