Dr.DermMIA said:

The useful move here is to separate what is established from what is widely repeated.

Adding the part of the answer the thread has not reached. Whatever the answer turns out to be, the method for getting there is the same: state the assumption, do the arithmetic in public, and invite the correction. That is slower than asserting, and it is the only version that survives being wrong.

The figures, for anyone assembling their own picture. Worth stating the units and the reference range whenever you post a number here. A large fraction of the apparent disagreement in these threads is two people using different units and both being right.

A narrower follow-up, since the general answer is now clear:

What would you measure differently if you were starting again?

TirzTom said:

Worth stating the units and the reference range whenever you post a number here.

Pushing back on TirzTom here. Not convinced. The evidence being cited is consistent with the conclusion and also consistent with two other conclusions nobody has ruled out.

TirzTom said:

Worth stating the units and the reference range whenever you post a number here.

Agreed, and one caution: a single measurement is not a measurement. Anything that moves day to day needs a trend before it means anything at all.