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Table 2 Evidence on intra-arrest hypothermia for human cardiac arrest

From: Intra-arrest hypothermia during cardiac arrest: a systematic review

Quality of Evidence Good ** Castrén, ABCD     
   * Castrén, E     
  Poor    * Garrett, A   
     ** Garrett, BCD * Bruel, E  
     ** Callaway, E * Kämärainen, E  
   1 2 3 4 5
   Level of Evidence
  1. Outcomes: A, return of spontaneous circulation; B, survival of event; C, survival to hospital discharge; D, intact neurological survival; E, reduction in temperature. Evidence, * supporting; ** neutral; *** opposing