Bioequivalence and Bioavailability Forum

Dear All (especially Helmut who has posted this),

I'm back to an old subject of this forum, but I haven't find an answer in a new topic. So, this is my question:
In this table you have computed one-sided 80% CI of different CVintra and presented the Upper Limit:

❝    n  10%   15%   20%   30%   40%    50%

❝    4  21.4  32.4  43.8  68.7  97.2  131

❝    6  15.6  23.6  31.6  48.2  65.8   84.8

❝   12  12.7  19.1  25.6  38.7  52.1   66.0

❝   16  12.2  18.3  24.4  36.9  49.5   62.5

❝   24  11.6  17.5  23.3  35.1  47.1   59.8

❝   32  11.3  17.0  22.7  34.2  45.8   57.6

The value of 80% CI is discussed and challenged in the thread (75%?...). I agree with your rationale. Furthermore, in a more recent post there is discussions and examples with two-sided 95% CI, both with R code (alpha/2) or CVCL() function in PowerTOST.
So, did you have rules (personnal SOP or references) for the % of CI (75, 80, 95...) and if it is more relevant with one-sided or two-sided CI?

All the best,
Jérôme