TABLE 4.

Demographics of study participants

Criterion	No. of subjects	% of subjectsa
Gender
Male	1,818	47.44
Female	2,014	52.56
Age
<18b	3	0.08
18-23	1,064	27.77
24-29	880	22.96
30-35	580	15.14
36-41	499	13.02
≥42	806	21.03
Race
African-American	2,572	67.12
American Indian (Alaska Native)	11	0.29
American Indian (Alaska Native)/African-American	4	0.10
Asian	28	0.73
Caucasian	1,198	31.26
Caucasian/Asian	1	0.03
Unknown	18	0.47
Ethnicity
Hispanic/Latino	577	15.06
Non-Hispanic/Latino	3,255	84.94
Marital status
Single	2,790	72.81
Married	673	17.56
Separated	107	2.79
Divorced	219	5.72
Widowed	43	1.12
Education level
Primary	205	5.35
Secondary	1,923	50.18
College	1,522	39.72
Postgraduate	180	4.70
No response	2	0.05

^aTotal = 3,832 subjects.

^bSubjects did not meet study inclusion criteria.