“…Frequently cited reasons for non-donation are medical (including safety) concerns (4,7,12,(14)(15)(16)18), fear (4,7,9,10,15,16,(18)(19)(20), and a lack of time (4,9,15,16). Notwithstanding this research, questions remain as to the specific reasons why students may or may not donate blood at any given blood drive and why there is a substantial difference between the percentage who view blood donation positively and those who actually donate (4,9,15,(21)(22)(23). It is likely that transient factors occurring in close temporal proximity to a blood drive play a major role in determining whether or not donation occurs.…”