Fig 1.
Definitions of the four studied groups (Shock-Shock, Shock-NShock, NShock-Shock, and NShock-NShock) according to the cardiac arrest rhythms (shockable or non-shockable) in the prehospital and emergency department stages.
Shock-Shock, shockable and shockable; Shock-NShock, shockable and non-shockable; NShock-Shock, non-shockable and shockable; NShock-NShock, non-shockable and non-shockable; ED, emergency department; CPR, cardiopulmonary resuscitation.
Fig 2.
Flow diagram of the studied population.
Shock-Shock, shockable and shockable; Shock-NShock, shockable and non-shockable; NShock-Shock, non-shockable and shockable; NShock-NShock, non-shockable and non-shockable; ED, emergency department; OHCA, out-of-hospital cardiac arrest; DOA, dead on arrival; DNR, do not resuscitate; ROSC, return of spontaneous circulation. *non-medical causes included trauma, asphyxia, poisoning, and drowning. †defined as patients with an invalid outcome because of data loss in the medical review or transfer to other hospitals.
Table 1.
Baseline characteristics and resuscitation variables according to cardiac arrest rhythm in the OHCA patient without ROSC.
Fig 3.
Summarized results of the logistic regression analysis on the effect of changes in the cardiac rhythms from the prehospital to the emergency department stages on the outcomes of OHCA patients without prehospital ROSC before propensity score matching.
Shock-Shock, shockable and shockable; Shock-NShock, shockable and non-shockable; NShock-Shock, non-shockable and shockable; NShock-NShock, non-shockable and non-shockable; ROSC, return of spontaneous circulation; ED, emergency department.
Table 2.
Multivariate logistic regression for survival to hospital discharge and good neurological outcome at hospital discharge.
Fig 4.
Summarized results of the logistic regression analysis on the effect of changes in the cardiac rhythms from the prehospital to emergency department stages on the outcomes of the OHCA patients without prehospital ROSC after propensity score matching.
Shock-Shock, shockable and shockable; Shock-NShock, shockable and non-shockable; NShock-Shock, non-shockable and shockable; NShock-NShock, non-shockable and non-shockable; ROSC, return of spontaneous circulation; ED, emergency department.
Table 3.
Multivariable logistic regression analysis for the propensity score-matched sample between four groups for outcomes.