Knowledge, Attitudes, and Motivations towards Blood Donation among King Abdulaziz Medical City Population

Table 5

Association between history of blood donation among participants and their total attitude score towards blood donation.

History of blood donation	Blood donation total attitude		value^*
	score (4–20)
	Median	Mean rank
Yes	16.5	196.0	<0.001
No	16	157.2

Mann-Whitney test.