From: Mechanical CPR devices compared to manual CPR during out-of-hospital cardiac arrest and ambulance transport: a systematic review
Level of Evidence
1
2
3
4
5
Evidence SUPPORTING Clinical Question
Good
Stapleton [18], Sunde [19]
Fair
Axelsson [20], Dickinson [21]
Olasveengen [22], Ong [12], Casner [23]
Poor
Evidence NEUTRAL Clinical Question
Axelsson [24]
Evidence OPPOSING Clinical Question
Hallstrom [13]
Wang [25]