Adding the clinical framing, because it changes how the question reads. 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.
One thing that is still open after LeilaHI’s answer:
Did your prescriber agree with that reading, and if not what was their objection?
lisa_labSD said:The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either.
This is where I part company with the consensus forming above. The objection nobody has made: this only works if the measurement is doing what we assume it is doing, and that assumption has not been tested here.
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View Resultslisa_labSD said:The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either.
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.
Moderator note: a post naming a supplier has been edited. Discuss suppliers in the review sections, not here. Tagging this one for the weekly digest.