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Table 3 Summary of evidence

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
Good      
Fair      
Poor   Axelsson [24]    
Evidence OPPOSING Clinical Question
Good Hallstrom [13]     
Fair   Wang [25]    
Poor