Knowledge, Attitudes, Practices, and Factors Associated with Voluntary Blood Donation among University Students in Kilimanjaro, Tanzania

Table 4

Factors associated with blood donation.

Characteristics	Ever donated blood
	COR (95%CI)	value	AOR (95% CI	value
Sex
Female	1		1
Male	2.1 (1.3–3.5)	0.004	0.52 (0.3–0.92)	0.024
Awareness of blood group
No	1		1
Yes	12 (5.9–24.6)	<0.001	11.5 (5.5–23.9)	<0.0001
Amount of blood donated per time
Wrong answer	1		1
Correct answer	2.06 (1.3–3.20)	0.001	1.5 (1.6–0.96)	0.075
Attitude towards blood donation
Negative	1
Positive	4.5 (1.0–19.6)	0.04	—
Are you willing to donate blood to a relative?
No	1		—
Yes	4.7 (1.1–20.5)	0.038
Are you willing to donate blood to anyone?
No	1		1
Yes	3.9 (1.5–9.8)	0.006	2.9 (1.03–8)	0.044
Expectation for reward after donation
No	1		1
Yes	0.3 (0.17–0.65)	0.001	0.3 (0.16–0.7)	0.004

(crude odds ratio) involved bivariate regression that included all significant variable associated with blood donation practice; AOR (adjusted odds ratio) involved multiple regression of all significant variables from COR that were added simultaneously.