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Table 1 Demographic characteristics and clinical findings

From: 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

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