Table 3.

Comparison of pre- and post-knowledge test results and evidence-based case report (EBCR) score between UI, UM and UMCU

	UMCU	UI	UM
Pre-test scores
N	389	196	160
Mean (SD)	62.20 (9.21)	54.69 (10.51)	46.23 (8.69)
Minimum	9.38	31.58	28.12
Maximum	87.50	92.11	68.75
Mean difference (95 % CI)		7.52 (5.85–9.18)	15.97 (14.30–17.64)
p value		<0.001*	<0.001*
Post-test scores
N	377	196	200
Mean (SD)	74.75 (9.66)	73.54 (10.13)	61.39 (10.39)
Minimum	31.25	34.21	18.75
Maximum	100	89.48	81.25
Mean difference (95 % CI)		1.32 (0.40–3.04)	13.36 (11.66–15.06)
p value		0.484†	<0.001†
Difference in scores
N	350	196	159
Post-test minus pre-test	12.54 (11.44)	18.85 (12.81)	17.51 (9.49)
Mean difference (95 % CI)		6.32 (4.22–8.41)	4.98 (2.93–7.02)
p value		<0.001*	<0.001*
EBCR
N	71	40	40
Median	8.0	8.4	7.8
Minimum	5	7.5	7
Maximum	10	9.0	8.6
p value		0.001‡	0.44‡

* Independent t-test

† Ancova test, which include baseline score as covariate

‡ Mann–Whitney test