Clinical perspective, offered as context rather than as advice. It is worth asking what the claim would look like if it were false. If nothing would look different, it is not a claim about the world and no amount of discussion will settle it.
lucas_SP_BR said:If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way.
Saving this. It is the first explanation that did not require me to already understand it. Printing the relevant bit and taking it with me.
Adding the clinical framing, because it changes how the question reads. The version of this that has an answer is narrower than the version being asked. Narrow it and it becomes tractable; leave it broad and the thread will produce nine confident and incompatible replies.
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Browse GL BiochemModerator note: good thread. Keeping it here rather than moving it, because the question is general enough to be useful.