Differences in procedural knowledge after a “spaced” and a “massed” version of an intensive course in emergency medicine, investigating a very short spacing interval

Table 1 Characteristics of student groups

Variable	Total (n = 156)		Spaced group (n = 54)		Massed group (n = 102)		Statistical difference^b
	n	%	n	%	n	%	p
Drop-out rate^a	35	18.3	10	15.6	25	19.7	0.603
Gender (female)	94	60.3	33	61.1	61	59.8	0.874
Age below 25 years	77	49.4	19	35.2	58	56.9	0.010
Native language German	128	82.1	40	74.1	88	86.3	0.059
Work experience in EMS	13	8.3	5	9.3	8	7.8	0.761

ISSN: 1472-6920