Table 4. Multivariable analysis of factors associated with knowledge scores.

outcome: pre-post score difference*	Coefficients	95% CI		P value
Sex (Ref: female)
Male	-0.34	-2.32	1.64	0.732
Medical status (Ref: Year 3)
Medical student—Year 4	-1.73	-4.27	0.81	0.181
Medical student—Year 5	-2.56	-4.95	-0.17	0.036
Recently completed medical school	-2.84	-6.78	1.11	0.157
Pre-post duration (unit: week)	-0.21	-0.34	-0.07	0.003
Pre-test score	-0.45	-0.65	-0.25	<0.001
Intercept	25.34	17.17	33.51	<0.001

*Post minus pre test score.