Table 3.

Changes in mean scores from baseline to second assessment. Values are mean differences (95% confidence intervals) unless stated otherwise

				P values
Scores	Pocket card group	Control group	InfoRetriever group	Between-group comparisons overall	Pocket card v controls	Control v InfoRetriever	Pocket card v InfoRetriever
Factor scores:
Personal application and current use of evidence based medicine	0.38 (0.21 to 0.55)	0.20 (0.03 to 0.36)	0.59 (0.44 to 0.74)	0.004	0.52	0.001**	0.022
Future use of evidence based medicine	0.16 (0.03 to 0.29)	0.20 (0.03 to 0.36)	0.29 (0.12 to 0.45)	0.30	NA	NA	NA
Individual item scores‡:
Frequency of looking up evidence	−0.36 (−0.67 to −0.05)	−0.18 (−0.38 to 0.01)	0.57 (0.28 to 0.86)	<0.001	0.67	<0.001**	0.002**
Frequency of raising role of current best evidence	0.51 (0.22 to 0.80)	0.16 (−0.13 to 0.46)	0.93 (0.67 to 1.18)	0.027	0.45	0.008*	0.058
Confidence in clinical decision making	0.29 (0.06 to 0.52)	0 (−0.24 to 0.24)	0.57 (0.32 to 0.83)	0.095	NA	NA	NA

Significance after Bonferroni correction: ^*<0.017; ^**<0.003; ^***<0.0003.

NA=not available (P>0.05 in between group comparison overall).

^‡Full questions in footnote to table 1.