Table 5.

Predictors of attitudinal change from first to second surveys

A) Predictors of positive change in willingness to donate
Variable	Odds Ratio	Std. Error	95% Confidence Interval	p valuea
Non-European American ethnicity	0.71	0.51	0.17–2.90	0.63
Change in knowledge score	1.42	0.13	1.18–1.71	<0.001
Gender (Reference = male)	0.56	0.33	0.18–1.74	0.32
School	1.87	0.72	0.88–4.00	0.10
Having talked with familyb	0.29	0.19	0.08–1.02	0.05
Age	0.59	0.13	0.39–0.90	<0.02
Personal experiencec	1.23	0.89	0.32–5.04	0.76

B) Predictors of negative change in willingness to donate
Variable	Odds Ratio	Std. Error	95% Confidence Interval	p valuea
Non-European American ethnicity	0.54	0.45	0.10–2.81	0.46
Change in knowledge score	1.21	0.12	0.99–1.47	0.06
Gender	0.44	0.33	0.10–1.88	0.27
School	1.56	0.67	0.67–3.62	0.30
Having talked with familyb	0.38	0.28	0.09–1.58	0.18
Age	0.64	0.18	0.37–1.10	0.11
Personal experiencec	1.79	1.41	0.38–8.40	0.46

^aStandard logistic regression analysis.

^bReference is an affirmative response to having talked with family.

^cPersonal experience reflects personal knowledge of someone who has been an organ donor, signed up as a bone marrow donor, been on the waiting list for an organ transplant, or received an organ transplant.