I’d like to tap into the knowledge base here for a helpful discussion of the concept of Area under the Curve (AUC), specifically, as displayed on my MiniMed pump when wearing the Enlite sensor, under the Utilities > Daily Totals menu.
I understand what that concept captures (don’t ask me to explain it back, I am not going to be able to, but I read a lot of definitions and explanations how to calculate it in principle, so I get the main point – it measures the length of time of hypo- and hyper- excursions, but also accounts for their severity/level off from my pre-set targets). I also understand intuitively that you want it to be as low as possible on both counts; less variability of BG is my current goal precisely. So far, so good.
But I want to know what number I should aim for: what is the target AUC that shows normal variability of BG over the course of a day? (On the logic that the target HbA1c is that of a normally functioning pancreas, with the understanding that it is not always possible to achieve for a PWD.)
I only started paying attention to them a couple of days ago, with the insertion of my last sensor, and currently see the following:
Today (still mid-day on Oct 24)
AUC High 0.6
AUC Low 0.0
AUC High 1.0 (fantastic day, when I felt what a difference CGM can really make)
AUC Low 0.1
Oct 22 (not one of my best days)
AUC High 6.7
AUC Low 0.5
Oct 21 (pretty average day)
AUC High 4.3
AUC Low 0.0
Oct 20 (pretty average day)
AUC High 4.6
AUC Low 1.7
I just have no good way of interpreting these mysterious units. Any knowledgeable discussion (Are there are any resident endos on this site?) welcome.