Hello,

I'd like to create threshold intervals for e.g. abundance of Bifidobacteria in the gut, meaning, that below and above a certain level a state of dysbiosis would occur.

I only have data from 6 patients so it would be hard to build my own "library". Does anyone have any idea how to calculate it? Are there perhaps universal levels I could find somewhere? I've never done it and I am having a hard time finding any information about it online. I am aware that the microbiota very much depends on one's age, diet, geographical location etc.

Thank you!