TABLE IX.

Phase 3 SURE test scores from 453 participants

Item	Question
	1	2	3	4	Total
Intervention (n=230)
Pre-test proportions
Sure	0.6	0.43	0.5	0.65	0.39
Unsure	0.4	0.57	0.5	0.35	0.61
Post-test proportions
Sure	0.67	0.67	0.66	0.7	0.56
Unsure	0.33	0.33	0.34	0.3	0.44
Within-group differences
McNemar p	0.008	<0.001	<0.001	0.09	<0.001
Odds ratio	2.50	11.80	6.14	1.92	7.67
95% Confidence interval	1.31 to 4.77	5.76 to 24.16	3.05 to 12.36	0.97 to 3.81	3.73 to 15.75
Control (n=223)
Pre-test proportions
Sure	0.54	0.39	0.46	0.61	0.33
Unsure	0.46	0.61	0.54	0.39	0.67
Post-test proportions
Sure	0.6	0.6	0.64	0.68	0.49
Unsure	0.4	0.4	0.36	0.32	0.51
Within-group differences
McNemar p	0.13	<0.001	<0.001	0.005	<0.001
Odds ratio	1.60	16.67	7.50	3.29	5.50
95% CI	0.92 to 2.78	7.09 to 39.16	3.64 to 15.46	1.48 to 7.30	2.82 to 10.74
Between-group differences in post-test scores (n=453)
Chi-square (df=1)	2.94	2.61	0.19	0.18	2.36
p Value	0.09	0.11	0.66	0.67	0.12
Odds ratio	0.72	0.73	0.92	0.92	0.75
95% Confidence interval	0.49 to 1.05	0.50 to 1.07	0.62 to 1.34	0.62 to 1.37	0.52 to 1.08

SURE = Sure of myself, Understand information, Risk–benefit ratio, Encouragement.