Table 1.

Demography and categorization of study subjects

	Controls	Dependent	Total
Gender
Female	68	55	123
Male	78	90	168
Total	146	145	291
Ethnicity
Caucasian	64	65	129
African-American	34	36	70
Hispanic	25	35	60
Asian-American	18	1	19
Caucasian-American/Hispanic	3	5	8
African-American/Hispanic	2	1	3
African-American/Native American	0	1	1
Asian-American/Caucasian	0	1	1
Total	146	145	291