Table 2.

Statin knowledge scores at pretest and post-test

	n	Pretest score (mean [SD])	Post-test score (mean [SD])	Difference	P value
African American patients
Audio booklet	31	8.39 [2.94]	10.87 [3.40]	2.48 [2.45]	<0.01
Standard of care	29	7.97 [2.67]	8.24 [2.61]	0.28 [2.19]
Hispanic patients
Audio booklet	28	4.82 [3.87]	6.21 [3.57]	1.39 [2.78]	0.03
Standard of care	28	7.21 [3.52]	7.00 [4.00]	−0.21 [2.64]

Notes: Means are from sum of correct responses to 15-item knowledge measure. P values from t-test on difference scores.