No problem, I'm glad I could help. I'm actually going to address this post as well if you don't mind!
I have never been called back saying I've been accepted if that gives you any assurances. I've also been fortunate to be accepted by OSU, University of Iowa, GWU, Johns Hopkins, and Columbia and not a single of these schools called me back saying I was accepted. It generally came in an email format or was updated on their "portal" site (Johns Hopkins). Some accepted me within a week of my interview, others took a couple of weeks. One took me about 3-4 weeks. It really varies so don't let the length of time it takes to hear back scare you. If they were going to reject you they wouldn't hold of on doing it so you're still in the running even if it has been a few weeks since the interview.
There definitely is a way to ask about your candidacy without being rude. Usually at the end of my interview I say something along the lines "Thank you so much for taking the time to interview me today and for allowing me this great opportunity, I was curious as to what the general time frame for individuals in this phase to hear back in regards to their status is?". I feel this is a formal and respectable way to inquire and it seems to have been a success for me during my experiences with it.
So I'm a proponent of not bringing up any of your "shortcomings" unless they inquire about it or ask you if you would like to mention anything from your past. The main reason is when you feel the need to bring it up during an interview it makes it evident you are selling yourself short and sometimes it illustrates a lack of responsibility for those shortcomings. This is coming from first hand experience. I graduated with a 3.1 gpa (nothing spectacular), there were a variety of reasons as to why I didn't score the general gpa most applicants do (3.4 etc) but a lot of it had to do with me being young and immature during my college years. I graduated in 2015 and have had couple years of work experience which I used to tailor and illuminate my strengths. Your application has already done most of your talking and you've explained who you are via your essay/resume/volunteering/etc. You were given this interview for a reason, most of the time these schools have already looked at your application and noticed these "shortcomings" but still view you as a potential student within their program, so there is no need to beat a dead horse by bringing it up again if that makes sense. This is definitely an opinion so I understand not everyone may feel that way but it's how I've conducted myself and I'd like to believe it has gotten me where I'm at.
My experience with these interviews is it seems that most of the time these interviews are really done as a personality test, a sense of formality and to see if you are truly passionate about the healthcare field which they use as a supplement to your main application when deciding on offering letters of acceptance. My biggest advice is be yourself and be genuine! Don't create an illusion of yourself, just be sure to be professional.
As always, if you have any other questions feel free to ask here or message me in private. Hopefully this helped.