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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