Relationship between level of CPR training, self-reported skills, and actual manikin test performance—an observational study

Table 2 CPR quality indicators between groups with different training levels

	Group I	Group II	Group III	p value
	(n = 128)	(n = 82)	(n = 28)
Compression rate^a First loop CPR	109 ± 29.1	107 ± 20.3	95 ± 27.9	0.036
Compression rate^a Second loop CPR	104 ± 26.9	106 ± 16.0	98 ± 24.5	0.365
Compression rate^a Third loop CPR	105 ± 26.0	106 ± 16.9	101 ± 18.3	0.603
Compression rate^a Fourth loop CPR	106 ± 26.3	107 ± 18.3	100 ± 21.3	0.310
Compression rate^a Fifth loop CPR	97 ± 26.8	113 ± 22.5	110 ± 27.3	p < 0.001
Effective ventilations (%)^b	16.4	56.1	85.7	p < 0.001
Compression fraction^c	0.65 ± 0.3	0.69 ± 0.3	0.74 ± 0.1	p < 0.001
Correct hand placement on chest (%)^d	66.4	81.7	89.4	p = 0.019
Correct compression depth (%)^e	40.6	71.4	82.1	p < 0.001
Total hands-off time (s)	47.0 ± 15.0	37.0 ± 12.8	30.3 ± 9.2	p < 0.001
Time from verified cardiac arrest to start CPR (s)	16.0 ± 12.8	3.0 ± 2.7	2.7 ± 1.2	p < 0.001

All results are shown as mean ± SD or %, and p is calculated with one-way ANOVA for continuous data and chi-square test of independence for associations between categorical data
CPR cardiopulmonary resuscitation
^aChest compressions per minute
^bElevation of thorax on manikin during rescue breaths
^cTime fraction used on compressions during five loops of 30:2
^dLower third of sternum in centre of thorax
^eCompression depth 5–6 cm

ISSN: 1865-1380