In an effort to research just how egregiously bad my D control was as a teenager and young adult I ordered up a set of pedi-endo clinic notes from the late 70's and 80's.
I was horrified to learn that from 1981-1985 the lowest A1C I had was 11.6 and the highest was 16.5 with an average over the 5 years of 14.4 ! To put that in perspective, the estimated average glucose for 14.4 is 367. Just about every single note said "poor control" except for the 11.6 because that was such a departure from the average. But what really discourages me is I don't remember a single time that the pedi-endo or nurse said anything to me, or offered any ways to improve control. Granted back then we did not have glucometers and the clinic still relied on us bringing in a 24 hour urine sample. Usually mine was a combination of my non-D sisters and mine so it usually came out pretty good, but obviously it never matched the A1C. Also I was taking a single injection of Lente insulin in the mornings I believe it was 46 units.
Things have thankfully changed for the better, but I can't help but think of the damage I did wandering around with an average blood glucose of 367.