Thanks for the response. I've only recently understood how to use the results search element of this site and noticed the same in regards to the schools who have extended interviews to candidates.
As for the programs I was accepted to previously, both were state schools. One of the schools was out of state and therefore done via Skype. The nature of the questions for the out of state school centered around my current professional role and responsibilities; interest in their specific program; ease of relocation and the importance of financial support in making a decision to matriculate. Additionally, we touched on my dissertation research interests. The program director and professor were the persons I met with. They were very amiable thus making the interviewing process pleasant. They offered a graduate assistantship and a scholarship. I decided not to pursue this program due to the heightened emphasis on the need for students to do school full time and little to no work.
The other program was within my state of residence. The interview process was rotational in nature. Each student met with 2 members of the admission panel at a time ... and if my memory serves me well there were about 4 interviews total. Again, the types of questions asked were about professional experience, motivation for pursuing the DrPH, and dissertation and research interests. I volunteered information regarding which professors I would like to align with which appeared to impress the panel because it demonstrates how much thought I put into their program's fit for me.
I decided to wait and apply again this cycle because I discovered an amazing track at Johns Hopkins ... which is EXACTLY what I need to develop the competencies needed to excel as I would like, in my field. At UNC, I identified a professor who is very interested in being my mentor and advisor with expertise in my area of specialty. I could see myself heavily involved in his research efforts. The UIC distance learning format and choices of electives offer more flexibility for my personal life, current professional commitments and desire to pursue the DrPH.
I hope all of this useful!!!!