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. Author manuscript; available in PMC: 2011 Aug 1.
Published in final edited form as: Transfusion. 2010 Apr 23;50(8):1778–1786. doi: 10.1111/j.1537-2995.2010.02618.x

Table 2.

Demographic Characteristics of the Sample

All (n=215) Control (n=109) Motivation (n=106)
Sex
 Female 59.1% 64.2% 53.8%
 Male 40.9% 35.8% 46.2%
 Past Donations
 0 19.2% 21.9% 16.5%
 1 21.2% 20.0% 22.3%
 2 9.1% 7.6% 10.7%
 3+ 50.5% 50.5% 50.5%
Race
 Black 24.3% 23.9% 24.8%
 American Indian/Alaska Native 0.5% 0.9% 0.0%
 Asian American 0.5% 0.9% 0.0%
 White 71.0% 71.6% 70.5%
 Native Hawaiian/Pacific Islander 0.0% 0.0% 0.0%
 Other 3.7% 2.8% 4.8%
Education
 9–12 grade, No Diploma 0.9% 0.0% 1.9%
 HS Diploma/GED 18.3% 15.0% 21.7%
 College, No Degree 44.1% 42.1% 46.2%
 Graduate Degree 36.6% 43.0% 30.2%
Income
 $0-$20,000 44.6% *35.5% *53.8%
 ↑$20,001–$40,000 24.9% 29.9% 19.8%
 $40,001–$60,000 14.1% 19.6% 8.5%
 $60,001–$80,000 9.9% 7.5% 12.3%
 $80,001–$100,000 3.8% 2.8% 4.7%
 Over $100,000 2.8% 4.7% 0.9%
Marital Status
 Previously or Still Married 41.3% 45.8% 36.8%
 Never married 58.7% 54.2% 63.2%
Employment
 Working 62.4% *70.7% 53.7%
 Student 37.6% 27.3% *46.3%

Mean Age (SD) 31.1 (13.5) 32.7 (13.8) 29.5 (13.0)
*

p< .05