Table 1.

Participants' characteristics by place of residence.

	Inner-city participants	Rural participants
Gender
Male (n)	12	13
Female (n)	20	21
Race/Ethnicity
White-American (n)	14	33
African-American (n)	16	1
Hispanic-American (n)	2	0
Age
Mean (standard deviation)	54.77 (10.66)	67.15 (12.07)
Range	28–69	37–89
Education
Median	High school diploma	Some college
Annual Income
Median	$10,001 - $20,000	$20,001 - $40,000
Previously participated in clinical trial
Yes	4	2
No	28	32