Dr.EM_Chicago said:

Almost every unanswerable question in these threads is unanswerable because three things changed in the same fortnight, and no amount of subsequent…

Adding the part of the answer the thread has not reached. 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.

Adding the numbers, since they settle part of this. For anyone reading later: the numbers in this thread are worth checking against a primary source before you act on them, including mine. Half the figures circulating in this community trace back to a secondary summary that dropped a qualifier.

I would rather be corrected than agreed with, if it comes to it.

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

Did your prescriber agree with that reading, and if not what was their objection?

dan_philly said:

For anyone reading later: the numbers in this thread are worth checking against a primary source before you act on them, including mine.

I do not accept the framing. The question has been narrowed to the version that has a tidy answer, and the part that was dropped is the part the OP actually asked about.

dan_philly said:

For anyone reading later: the numbers in this thread are worth checking against a primary source before you act on them, including mine.

Right, and the exception is worth naming rather than left implied, because the exception is where people get into trouble.