Dr.KarenChen said:

International shipping tracking for cross-border ordering orders: my experience with customs in the US when ordering from overseas: Seized and…

That is correct as far as it goes, and here is where it stops going. Yes, and the corollary is less popular: if the reasoning holds, it also holds where it produces an answer we do not like.

SurmountFan_IN said:

Agreed, with the caveat that HbA1c is unreliable in anaemia, haemoglobinopathies and recent blood loss, all of which are commoner than people assume.

This is exactly what I could not find anywhere else.

Dr.KarenChen said:

International shipping tracking for cross-border ordering orders: my experience with customs in the US when ordering from overseas: Seized and…

Filing a mild objection. Mild because I might be wrong; an objection because nobody has addressed the case that does not fit. Filing an objection on the n=1 problem. Personal experience is genuine evidence about one person and very weak evidence about anybody else, and this thread keeps promoting the first into the second.

The figures, for anyone assembling their own picture. Give anything pharmacological four weeks before you judge it, and give anything measured weekly a four-point rolling average before you call it a trend.

Moderator note: leaving this open. It is being argued well and the disagreement is the useful part. No action needed from anybody.