I've recently learned of an IGF-1 assay range issue, and thought it would be interesting to post the range used for me. It is from January of 2012. I was 35 years at the time this assay was used, and my IGF-1 was 283 ng/mL, growth hormone (ICMA) was 0.721 ng/mL, with a range of <=6 for all ages. My UCSF endocrinologist wanted me under 1 ng/mL for growth hormone.
IGF-1 (BL- blood level) Assay Range by LabCorp (San Diego, CA US) for use by
UCSF endocrinology for Acromegaly treatment (San Francisco, CA US) January 7, 2012
Age
|
Range
|
Mean
|
SD
|
19-20y
|
217-475
|
323
|
75
|
21-30y
|
87-368
|
237
|
74
|
31-40y
|
106-368
|
225
|
71
|
41-50y
|
118-298
|
205
|
60
|
51-60y
|
53-287
|
172
|
55
|
61-70y
|
75-263
|
180
|
51
|
71-80y
|
54-205
|
156
|
46
|