“Registered with” is doing an enormous amount of work in that sentence.

Reference ranges differ between labs, so comparing two reports is close to meaningless.

Most of the popular protocol is borrowed from a clinical population and applied to healthy people without comment.

Worth asking what specifically was measured. Pain scores move with mood and function does not.

“Registered with” is doing an enormous amount of work in that sentence.

You have two changes at once here. You cannot attribute anything until one of them moves.