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Table 2 Variables for analysis

From: How senior paramedics decide to cease resuscitation in pulseless electrical activity out of hospital cardiac arrest: a mixed methods study

Patient factors System factors Clinical factors
Age Time of collapse Adrenaline dose (mg)
Gender Time to basic resuscitation Progression to a shockable rhythm
Arrest witnessed Time to advanced resuscitation Defibrillation
Bystander resuscitation Duration of arrest End-tidal carbon dioxide
Co-morbidities Duration of basic life support (BLS) Heart rate
Place of arrest Duration of advanced life support (ALS) Return of spontaneous circulation
Family wishes considered Total duration of out of hospital cardiac arrest Rationale for cessation of resuscitation