A1C from 7.2 to 5.1 — need advice

Dr.SleepRoch said:

It is worth asking what the claim would look like if it were false.

Coming at Dr.SleepRoch’s question from a different direction. The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either. Those three things can all be true at once, and most arguments here are two people holding different parts of that.

The figures, for anyone assembling their own picture. One habit that pays for itself: post the method alongside the number. A figure without its method cannot be checked, and an unchecked figure is how this community accumulates folklore.

Correct me if the detail matters more than I have assumed.

Following on from Dr.SleepRoch — and this may be the naive question:

Was that from a primary source or from a summary of one?

LabKate said:

One habit that pays for itself: post the method alongside the number.

Pushing back on LabKate here. The counter-case has not been addressed. Somebody upthread described the situation that does not fit, and the thread moved on rather than engaging with it, which is the failure mode this board is supposed to avoid.

LabKate said:

One habit that pays for itself: post the method alongside the number.

That holds where the measurement is reliable. Where it is noisy — and a lot of what gets tracked here is noisy — the same reasoning produces confident nonsense.

That is the short version; the long version is somebody else's post.