Long-term impact of four different strategies for delivering an on-line curriculum about herbs and other dietary supplements

Table 2 Factors Associated with Changes in Expertise by Univariate Analysis

Characteristics	Baseline to Long-term Follow-Up CHANGES IN Knowledge Scores	P-value*	Baseline to Long-term Follow-Up CHANGES IN CONF Scores	P-value*	Baseline to Long-term Follow-Up CHANGES IN COMM Scores**	P-value*
N	385		385		182
Enrollment		<.001		<.001		.48
Fall	5.4 ± 13.5		0.4 ± 25.9		1.2 ± 1.7
Spring	11.7 ± 12.0		18.0 ± 12.9		1.0 ± 1.7
Practice Status		.02		.05		.02
Practitioners	8.9 ± 12.7		11.8 ± 20.2		.9 ± 1.7
Trainees	12.2 ± 12.5		15.9 ± 16.3		1.6 ± 1.6

• The p-values were calculated using Mann-Whitney U tests.
• ** The number of subjects answering the questions about communication practices was lower because these questions were only answered by participants who reported having seen a patient in the 30 days prior to the survey baseline, initial follow-up, and long-term follow-up.

ISSN: 1472-6920