A picture of someone donating blood.
The study of Contribution of attitudinal factors to blood donation in African American church attendees found that African Americans have a higher percentage in not trusting the blood donating system. A survey, which is included in the study, has asked 950 African Americans whether they would become blood donors or not. The study found that one in five African Americans does not trust the hospital resulting in not planning to donate blood. This is the end result of a popular misconception where people can actually get disease like HIV from donating blood.
http://www.nytimes.com/2010/09/21/health/research/21perception.html?_r=0
