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. Author manuscript; available in PMC: 2014 Sep 10.
Published in final edited form as: Trop Med Surg. 2013 Apr 15;1(2):117. doi: 10.4172/2329-9088.1000117

Table 1.

Characteristics of Participants in the Vaccine Trial by Those who Enrolled and Those who Did Not Enroll.

Characteristic Consented and Clinically Screened Participants (N=231) Not Enrolled Participants (N=151) Enrolled Participants (N=80)
Age
Age in years 26.6 26.5 27.4
Missing 10 5 0
Gender
Female 141 96 45
Male 90 55 35
Missing 0 0 0
Race/Ethnicity
Asian 14 8 6
Black/African American 48 40 8
Caucasian, not Hispanic 147 89 58
Hispanic 10 4 6
Multiracial 5 5 0
Other or Native American/Pacific Islander 4 2 2
Missing 3 3 0
Sexual Orientation
Heterosexual 187 122 65
Homosexual 20 15 5
Bisexual 13 9 4
Missing 11 5 6
Education
Not a High School Graduate 3 2 1
High School Graduate 8 6 2
Some College, No Degree 68 47 21
Associates Degree 6 6 0
Vocational Training 1 1 0
Bachelors Degree 99 66 33
Post-graduate Training (Masters, Doctorate or Professional Training) 37 18 19
Missing 9 5 4
Recruitment
Newspaper Ad/magazine/ Radio/Television/Billboard/Indoor/Newsletter 48 37 11
Email/Listserv/Web Site 73 52 21
Flyer/ Health Fair/ Community Event/ Educational Presentation/Special Event/Other/ Word of Mouth/Provider Referral/Personal Letter/Mass Mailing 106 60 46
Missing 4 2 2
Motivation
Altruism 35 22 13
Compensation/Free Vaccine 75 55 20
Personal Connection to the Cause 4 3 1
Scientific or Medical Contribution 51 31 20
Other 57 34 23
Missing 9 6 3