IIRC, that may be the number for “alive and unimpaired”; i.e., who haven’t suffered brain damage while their hearts were stopped, but yes, the number of people who are brought back by CPR and/or a full code is a lot less than you’d believe from TV and the movies.
Don’t get me wrong - 7% beats 0%, which is what you’d have with no CPR. Still, it’s no magic wand.
I'd say 1/2 of those make it..to another hospital room. And probably more than half of those don't make it out of the hospital.
CPR is done on thousands of people that have multiple co-morbidity's. And the odds of surviving CPR are real bad....
FWIW-