Table 4.

Previous training and sequence success prior to video teaching module

Variable	Level	Pre/sequence success?				Odds ratio (95% CI)	AUC	P value∗
		No		Yes
		n of N	Percent	n of N	Percent
Previous training	No	25 of 40	62.5%	15 of 40	37.5%		0.64	0.0088
	Yes	18 of 52	34.6%	34 of 52	65.4%	3.15 (1.33-7.42)

AUC, area under the curve; CI, confidence interval.

^∗Based on bivariate logistic regression with Wald confidence interval, and Firth correction for bias when appropriate.