DO residencies tend to be MUCH easier to get into... especially if you look at the # of applicants for each spot. For EM this year (where I matched MD), there were 600-800 applicants for every residency... and they interviewed about 10 people per 1 residency slot.
At the DO hospital I did my cores at, there were 20 OGME-1 spots, and they interviewed MAYBE 35-40.
You can apply for both, but can only be accepted to one.
IMHO, the MD residencies have *generally* better training, see much more pathology, and are at bigger institutions (for EM, the ED visit #s are drastically different from MD and DO residencies, I interviewed at some MD EM residencies that had 120k visits a year, where so DO EM residencies only had 10k-15k visits a year).
You cannot learen EM only seeing 5 patients a day.
Q, DO