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

Table 2 Summary of resuscitation variables and outcomes

Variable	Intervention		Control		Significance
Variable	Mean ± SD	Frequency n = 450 (%)	Mean ± SD	Frequency n = 450 (%)	P value
CPR duration (min)	41.51 (6.67)		42.54 (6.57)		0.025^a
Initial cardiac rhythm					0.236^b
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)	0.469^b
Return of spontaneous circulation		300 (66.7%)		191 (42.4%)	< 0.001^a
Survival status upon ICU discharge					< 0.001^b
Alive		269 (59.8)		151 (33.3)
Dead		181 (40.2)		299 (66.4)
Survival status upon hospital discharge					< 0.001^b
Alive		243 (54)		128 (28.4)
Dead		207 (46)		322 (71.6)

ISSN: 2052-0492