“… 14 , 20 , 21 , 22 , 23 , 24 Five of these examined the effects of team size. 14 , 20 , 21 , 22 , 23 One retrospective clinical study involving 10 057 OHCA patients found that having more than two paramedics at the scene did not improve survival to hospital discharge (2 paramedics − 8.7%, 3 paramedics − 8.7%, ≥4 paramedics − 8.4%, p = 0.88). 14 Several simulation studies demonstrated superior CPR quality (chest compression quality and fraction) in teams larger than two, along with a more efficient achievement of critical CPR endpoints such as rhythm recognition, adrenaline administration, and tracheal intubation.…”