Investigation of complications secondary to chest compressions before and after the 2010 cardiopulmonary resuscitation guideline changes by using multi-detector computed tomography: a retrospective study

Table 1 Demographic characteristics and clinical findings

Variable	Pre-2010 (n = 43)	Post-2010 (n = 142)	p-value
Age (year)	63.2 ± 20.2	62.6 ± 17.2	0.86
Sex			0.11
Male	21 (48.8)	89 (62.7)
Female	22 (51.2)	53 (37.3)
Location of arrest			0.81
OHCA	27 (62.8)	92 (64.8)
IHCA	16 (37.2)	50 (35.2)
Bystander CPR	11 (25.6)	47 (33.1)	0.35
Initial rhythm			0.97
Shockable	4 (9.3)	13 (9.2)
Non-shockable	39 (90.7)	129 (90.9)
Number of defibrillation attempts	0.8 ± 2.6	0.7 ± 2.0	0.69
Number of doses of adrenaline given	2.7 ± 2.1	3.4 ± 2.6	0.11
CPR time (min)	20.8 ± 15.2	21.6 ± 15.6	0.77

Data are presented as mean ± standard deviation or n (%)
Pre-2010 pre-guideline change, Post-2010 post-guideline change, OHCA out of hospital cardiac arrest, IHCA in-hospital cardiac arrest, CPR cardiopulmonary resuscitation

ISSN: 1757-7241