Table 4.

Multivariate Logistic Regression Model of Intentions to Donate to a Biobank

Variable	Level	Somewhat/Very Likely vs. Else	Very Likely vs Else
		OR (95% CI)	OR (95% CI)
Gender	Male Female	0.78 (0.55, 1.11)	0.78 (0.53, 1.15)
Marital Status	Married Not Married	1.18 (0.81, 1.72)	1.38 (0.89, 2.12)
Education Level	≤ High school graduate ≥ Some college	1.17 (0.80, 1.72)	0.78 (0.52, 1.15)
Employment Status	Employed Not Employed	1.30 (0.91, 1.95)	0.98 (0.63, 1.52)
Income Level	> $35,000 ≤ $35,000	0.87 (0.57, 1.34)	0.99 (0.63, 1.58)
Age	[Continuous]††	1.20 (1.00, 1.45)*	1.42 (1.18, 1.71)***
Health Insurance	Yes No	0.74 (0.47, 1.17)	0.72 (0.44, 1.18)
Personal History of Cancer	Yes No	0.70 (0.37, 1.34)	0.96 (0.45, 2.07)
Prior Study Participation	Yes No	1.14 (0.66, 1.95)	0.87 (0.51, 1.49)
Distrust	Yes No	0.62 (0.44, 0.87)**	0.41 (0.28, 0.60)***
Positive expectations	[Continuous] ††	1.32 (1.12, 1.57)***	1.27 (1.02, 1.58)*
Negative expectations about privacy	[Continuous] ††	0.92 (0.75, 1.12)	0.76 (0.54, 0.98)*
Negative expectations about impact	[Continuous] ††	1.00 (0.81, 1.23)	1.15 (0.92,1.44)
Participation barriers and facilitators	Facilitators vs. barriers Equal facilitators/barriers vs. barriers	2.17 (1.51, 3.10)*** 1.76 (0.92, 3.36)‡	1.69 (1.15, 2.48)** 1.80 (0.80, 4.05)

^***p<0.001;

^**p<.01,

^*p<0.05;

^‡p<0.10

^††ORs for continuous variable reflect the OR for a 1-SD unit change in the covariate.