drbeefsupreme
New Member
This paper Reference values for IGF-I serum concentration in an adult population: use of the VARIETE cohort for two new immunoassays gives ranges on typical IGF-1 for various ages/sexes for 8 different assays. The ranges between tests vary quite substantially - with 89-206 to 118-348 being the bottom and top ranges given for a 30-39 y/o male.
I check which one Labcorp does, its IDS-iSYS, which has a typical range of 108-265 in this paper.
I do not know a whole lot about nuances of blood tests. I know there's less and more sensitive testosterone and E2 tests, but that's about it. But I don't know how to make heads or tails of this many IGF-1 techniques. Can they be ordered from most to least accurate? Or is accuracy going to depend on the person and what else is going on inside of them? I've skimmed this paper and it has some details, but I'm hoping for a layperson's translation from someone more knowledgeable. Hoping that maybe the fact that there are so many different tests is nerd trivia and in practice people only really use one or two in research, or something like that.
I check which one Labcorp does, its IDS-iSYS, which has a typical range of 108-265 in this paper.
I do not know a whole lot about nuances of blood tests. I know there's less and more sensitive testosterone and E2 tests, but that's about it. But I don't know how to make heads or tails of this many IGF-1 techniques. Can they be ordered from most to least accurate? Or is accuracy going to depend on the person and what else is going on inside of them? I've skimmed this paper and it has some details, but I'm hoping for a layperson's translation from someone more knowledgeable. Hoping that maybe the fact that there are so many different tests is nerd trivia and in practice people only really use one or two in research, or something like that.
