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Fig. 1 | Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine

Fig. 1

From: Impact of an emergency medical dispatch system on survival from out-of-hospital cardiac arrest: a population-based study

Fig. 1

Emergency medical service system in the Northern French Alps Emergency Network. In the area with the single dispatch centre system, there are 92 BLS ambulances in 89 rescue centres for a population of 782,900 inhabitants in 4388 km2. In the area with the multiple dispatch centre system, there are 216 BLS ambulances in 208 rescue centres for a population of 1,556,600 inhabitants in 13,459 km2. The number of ambulances per inhabitant : 11.8 ambulances/100.000 inhabitants in the single dispatch centre system and 13.9 ambulances/100.000 inhabitants in the multiple dispatch centre system. BLS ambulance are evenly distributed to cover the entire area with a maximum on-site time of 20 min.BLS: basic life support; FD: fire department; EMS: emergency medical service

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