Table 4

Multivariable logistic regression model for the predictors of survival events

	OR	95% CI	p Value
Age (year)	1.01	1.00 to 1.01	0.066
Witnessed arrest	2.18	1.70 to 2.80	<0.001*
Time to EMS arrival at the hospital	0.97	0.95 to 0.98	<0.001*
Advanced airway management by EMS	1.70	1.27 to 2.26	<0.001*
AED
No AED use	–	–	0.128
Initial AED rhythm non-shockable	0.65	0.41 to 1.02	0.063
Initial AED rhythm shockable	0.81	0.43 to 1.54	0.529
Initial 12-lead ECG rhythm shockable	1.57	0.83 to 2.98	0.170
Atropine	1.68	1.26 to 2.23	<0.001*
MgSO₄	3.13	1.43 to 6.88	0.004*
VT/VF during CPR	1.24	0.88 to 1.74	0.221
Prehospital ROSC	6.89	3.27 to 14.54	<0.001*
Cardiac etiology	0.30	0.23 to 0.39	<0.001*
Stroke	1.30	0.89 to 1.90	0.175
Antiarrhythmics, class II	1.74	0.93 to 3.26	0.081
Statin	2.09	1.08 to 4.03	0.028*
α-Blocker	1.31	0.59 to 2.91	0.505
N-acetylcysteine	3.14	0.96 to 10.26	0.059
Digoxin	0.39	0.16 to 0.90	0.028*

*p<0.05.
AED, automated external defibrillator; CPR, cardiopulmonary resuscitation; EMS, emergency medical service; ROSC, return of spontaneous circulation; VF, ventricular fibrillation; VT, ventricular tachycardia.