Something to keep in mind is that those numbers are from the total applicant pool. Since you are already to the interview stage your chances increase even more (probably around 30-50% OOS). Also, from what I understand DMU is a private institution (not state-owned) and therefore do not favor in state or out of state; candidates are judged primarily on their own qualifications - hence there is no break for in state tuition or increase for out of state tuition.
This was taken from the doctor of physical therapy FAQ:
"Do you have a preference for Iowa applicants?
No. We do not have an in-state preference. Because we are a private institution, we do not take applicants' state of residence into consideration when making acceptance offers. We are looking for the best and brightest applicants, regardless of their state of residence."
I could be wrong though, but that's just what I gathered from the school website and interview day. Anyway, good luck during your interview!