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Table 5 Summary of CPR event survival and associated morbidity

From: Effect of the Cardio First Angel™ device on CPR indices: a randomized controlled clinical trial

Variable Intervention (n = 40) Control (n = 40)  
  Frequency (%) Frequency (%) p Valuea
Return of spontaneous circulation 29 (72.5) 14 (35) 0.001
Sternum fracture 2 (5) 7 (17.5) 0.15
Any rib fracture 23 (57.5) 33 (82.5) 0.02
Number of rib fractures    
 0 17 (42.5) 7 (17.5)  
 1 16 (40) 6 (15)
 2 6 (15) 15 (37.5)
 3 1 (2.5) 9 (22.5)
 4 0 2 (5)
 5 0 1 (2.5)
  1. CPR cardiopulmonary resuscitation
  2. aχ2 test