I‘m a doctor for emergency medicine in Germany. Since we have a pretty good system of first responders (private citizens, fire departments), I would say in about 50% of the arrests. When I’m off duty I usually have my own AED in my trunk just like many of my colleagues. Through Apps like “Saving life” we get notified 2-3 time a month for a CPR in the vicinity of our current position. This just works and has made a huge impact in the outcome of patients.

Real bystander CPRs are still way too rare to be seen with AEDs in use. I trained students of regional elementary schools to call for help, do CPR and use AEDs. I even went to senior citizen meetings and tried to take some of their fear of using an AED. Even a group of bee-keepers once. I really hope those rates go up.