The figures, for anyone assembling their own picture. If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way. Most of the apparent contradictions in these threads dissolve at that step.
Following on from LindaRN_retired — and this may be the naive question:
What did you change at the same time, and can you separate the two now?
labquiet_amy said:If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way.
Coming at labquiet_amy’s question from a different direction. The distinction that resolves most of these threads is between what is true on average and what is true for one person. Both are real; they answer different questions and get quoted as if they were the same one.
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Shop Reference StandardsOP back with an update, since a thread like this is useless without one.
Closing this out. What actually changed my mind was the point about waiting for a trend instead of reading a single measurement, which is embarrassing in hindsight and worth saying anyway.
Dr.PathRoch said:The distinction that resolves most of these threads is between what is true on average and what is true for one person.
Fair, and it stops being fair at the extremes. The middle of the range is well understood; the ends are where the honest answer is that nobody knows.