UNECOM states on their website that a great number of people in their class has a graduate degree of some sort. MSc, MA, BMA, MPH, MASc or other degrees.
Actually being an applicant with grad degree. I would not be surprised if there are greater number of people ENTERING DO schools with a grad degree. Entering meaning coming in to the program with a graduate degree. The reason I say this, is because many MD graduats go on to do MSc or MPH or even PhD after they complete medical school or durring. Just look at the big number that come out with MD/PhD.