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Table 2 Summary of resuscitation variables and outcomes

From: Real-time compression feedback for patients with in-hospital cardiac arrest: a multi-center randomized controlled clinical trial

Variable Intervention Control Significance
Mean ± SD Frequency n = 450 (%) Mean ± SD Frequency n = 450 (%) P value
CPR duration (min) 41.51 (6.67)   42.54 (6.57)   0.025a
Initial cardiac rhythm 0.236b
 Asystole 185 (41.1)   183 (40.7)
 Ventricular tachycardia 38 (8.4)   33 (7.3)
 Ventricular fibrillation 42 (9.3)   61 (13.6)
 Pulseless electrical activity and bradyarrhythmia 185 (41.1)   173 (38.4)
First shock success rate 49 (10.9)   57 (12.7) 0.469b
Return of spontaneous circulation 300 (66.7%)   191 (42.4%) < 0.001a
Survival status upon ICU discharge < 0.001b
 Alive 269 (59.8)   151 (33.3)
 Dead 181 (40.2)   299 (66.4)
Survival status upon hospital discharge < 0.001b
 Alive 243 (54)   128 (28.4)
 Dead 207 (46)   322 (71.6)
  1. aMann–Whitney U test
  2. bChi-square test