I want to know what the up to date risk ratio is for the athletes compared to general population
Not so much a 'risk' per say, it depends on symptoms, if there are none no need for a PM, it's also usually the simplest form of pacing (there are many and varied ways to pace a heart, reprogramming is done at outpatients with what is basically a magnet).
MedSchoolRat
But AF, as you should know if you are a med student, is a different thing, although often associated with enlarged atria.
Have you seen the research on CFAE?
Have AF though and take a low dose beta blocker.
LOL, well of course you have a low resting HR, I was going to suggest you saw a Dr before you said that.
Beta blockers have the affect of lowering HR but the effect of increasing the contraction so the heart is beating slower but pumping more blood out with each beat.