Comparison of the quality of chest compressions on a dressed versus an undressed manikin: A controlled, randomised, cross-over simulation study

Table 2 Performance of chest compressions for laypeople

	Mean percentage of correct actions
Variable*	Undressed chest (95% CI)	Dressed chest (95% CI)	Mean group Difference (95% CI)	p value
Correct hand positioning	84% (71;96)	80% (67;94)	4 (-7;14)	0.46
Complete release (≤ 10 mm)	99% (98;100)	100% (99;100)	0 (-1;0)	0.33
Correct compressions depth (range 40-50 mm)	25% (13;37)	34% (20;48)	-9 (-23;4)	0.16
Compressions correct in all aspects	21% (10;32)	31% (17;45)	-10 (-23;4)	0.15

*All variables are means per group in the studied cycle of performed CPR given as percentage.
Laypeople. Group means and differences for performance of chest compressions for the variables: Correct hand positioning, complete release (≤ 10 mm), correct compressions depth (range 40-50 mm) and compressions correct in all aspects, performed on an undressed and dressed chest.

ISSN: 1757-7241