Table 4 Search strategy

PubMed

("Out-of-Hospital Cardiac Arrest"[Mesh] OR "out of hospital cardiac arrest"[tw] OR "out of hospital cardiac arrests"[tw] OR "out of hospital heart arrest"[tw] OR "out of hospital heart arrests"[tw] OR "out of hospital cardiopulmonary arrest"[tw] OR "OHCA"[tw] OR "prehospital cardiopulmonary arrest"[tw] OR "pre-hospital cardiopulmonary arrest"[tw] OR "prehospital cardiac arrest"[tw] OR "pre-hospital cardiac arrest"[tw] OR "prehospital heart arrest"[tw] OR "pre-hospital heart arrest"[tw] OR "automated external defibrillator"[tw] OR "automated external defibrillators"[tw] OR "bystander cardiopulmonary resuscitation"[tw] OR "bystander CPR"[tw] OR "layperson cardiopulmonary resuscitation"[tw] OR "layperson CPR"[tw]) AND

("Cost–Benefit Analysis"[Mesh] OR "cost benefit"[tw] OR "cost effective"[tw] OR "cost effectiveness"[tw] OR "economic evaluation"[tw] OR "economic evaluations"[tw] OR ("cost"[tw] AND ("benefit"[tw] OR "benefits"[tw])) OR "cost utility"[tw] OR "cost savings"[mh] OR "cost savings"[tw] OR "cost control"[tw] OR "costs and cost analysis"[mh:noexp] OR "cost analysis"[tw] OR "cost comparison"[tw])

Embase

('Out of Hospital Cardiac Arrest'/exp OR 'out of hospital cardiac arrest' OR 'out of hospital cardiac arrests' OR 'out of hospital heart arrest' OR 'out of hospital heart arrests' OR 'out of hospital cardiopulmonary arrest' OR 'OHCA' OR 'prehospital cardiopulmonary arrest' OR 'pre-hospital cardiopulmonary arrest' OR 'prehospital cardiac arrest' OR 'pre-hospital cardiac arrest' OR 'prehospital heart arrest' OR 'pre-hospital heart arrest' OR 'automated external defibrillator' OR 'automated external defibrillators' OR 'bystander cardiopulmonary resuscitation' OR 'bystander CPR' OR 'layperson cardiopulmonary resuscitation' OR 'layperson CPR') AND

('Cost Benefit Analysis'/exp OR 'cost benefit' OR 'cost effective' OR 'cost effectiveness' OR 'economic evaluation' OR 'economic evaluations' OR ('cost' AND ('benefit' OR 'benefits')) OR 'cost utility' OR 'cost control' OR 'cost savings' OR 'cost control' OR 'cost analysis' OR 'cost comparison')

NOT 'conference abstract'/it

Global Health

("out of hospital cardiac arrest" OR "out of hospital cardiac arrests" OR "out of hospital heart arrest" OR "out of hospital heart arrests" OR "out of hospital cardiopulmonary arrest" OR "OHCA" OR "prehospital cardiopulmonary arrest" OR "pre-hospital cardiopulmonary arrest" OR "prehospital cardiac arrest" OR "pre-hospital cardiac arrest" OR "prehospital heart arrest" OR "pre-hospital heart arrest" OR "automated external defibrillator" OR "automated external defibrillators" OR "bystander cardiopulmonary resuscitation" OR "bystander CPR" OR "layperson cardiopulmonary resuscitation" OR "layperson CPR") AND

(exp "Cost Benefit Analysis"/ OR "cost benefit" OR "cost effective" OR "cost effectiveness" OR "economic evaluation" OR "economic evaluations" OR ("cost" AND ("benefit" OR "benefits")) OR "cost utility" OR "cost savings" OR exp "cost control"/ OR "cost control" OR "cost analysis"/ OR "cost analysis" OR "cost comparison")

Global Index Medicus

(MH:"Out-of-Hospital Cardiac Arrest" OR "out of hospital cardiac arrest" OR "out of hospital cardiac arrests" OR "out of hospital heart arrest" OR "out of hospital heart arrests" OR "out of hospital cardiopulmonary arrest" OR "OHCA" OR "prehospital cardiopulmonary arrest" OR "pre-hospital cardiopulmonary arrest" OR "prehospital cardiac arrest" OR "pre-hospital cardiac arrest" OR "prehospital heart arrest" OR "pre-hospital heart arrest" OR "automated external defibrillator" OR "automated external defibrillators" OR "bystander cardiopulmonary resuscitation" OR "bystander CPR" OR "layperson cardiopulmonary resuscitation" OR "layperson CPR") AND

(MH:"Cost–Benefit Analysis" OR "cost benefit" OR "cost effective" OR "cost effectiveness" OR "economic evaluation" OR "economic evaluations" OR ("cost" AND ("benefit" OR "benefits")) OR "cost utility" OR MH:"cost savings" OR "cost savings" OR "cost control" OR MH:"costs and cost analysis" OR "cost analysis" OR "cost comparison")

Cochrane

([mh "Out-of-Hospital Cardiac Arrest"] OR "out of hospital cardiac arrest":ti,ab,kw OR "out of hospital cardiac arrests":ti,ab,kw OR "out of hospital heart arrest":ti,ab,kw OR "out of hospital heart arrests":ti,ab,kw OR "out of hospital cardiopulmonary arrest":ti,ab,kw OR "OHCA":ti,ab,kw OR "prehospital cardiopulmonary arrest":ti,ab,kw OR "pre-hospital cardiopulmonary arrest":ti,ab,kw OR "prehospital cardiac arrest":ti,ab,kw OR "pre-hospital cardiac arrest":ti,ab,kw OR "prehospital heart arrest":ti,ab,kw OR "pre-hospital heart arrest":ti,ab,kw OR "automated external defibrillator":ti,ab,kw OR "automated external defibrillators":ti,ab,kw OR "bystander cardiopulmonary resuscitation":ti,ab,kw OR "bystander CPR":ti,ab,kw OR "layperson cardiopulmonary resuscitation":ti,ab,kw OR "layperson CPR":ti,ab,kw) AND

([mh "Cost–Benefit Analysis"] OR "cost benefit":ti,ab,kw OR "cost effective":ti,ab,kw OR "cost effectiveness":ti,ab,kw OR "economic evaluation":ti,ab,kw OR "economic evaluations":ti,ab,kw OR ("cost":ti,ab,kw AND ("benefit":ti,ab,kw OR "benefits":ti,ab,kw)) OR "cost utility":ti,ab,kw OR [mh "cost savings"] OR "cost savings":ti,ab,kw OR "cost control":ti,ab,kw OR [mh ^"costs and cost analysis"] OR "cost analysis":ti,ab,kw OR "cost comparison":ti,ab,kw)

Tufts Cost-Effectiveness Registry

"out of hospital cardiac arrest" OR "out of hospital cardiac arrests" OR "out of hospital heart arrest" OR "out of hospital heart arrests" OR "out of hospital cardiopulmonary arrest" OR "OHCA" OR "prehospital cardiopulmonary arrest" OR "pre-hospital cardiopulmonary arrest" OR "prehospital cardiac arrest" OR "pre-hospital cardiac arrest" OR "prehospital heart arrest" OR "pre-hospital heart arrest" OR "automated external defibrillator" OR "automated external defibrillators" OR "bystander cardiopulmonary resuscitation" OR "bystander CPR" OR "layperson cardiopulmonary resuscitation" OR "layperson CPR"