Endocrinology and Metabolism

Sang-Guk Lee

1 Article

Hypothalamus and Pituitary gland
Establishment of Reference Intervals for Serum Insulin-Like Growth Factor I in Korean Adult Population: Boyeon Kim, Yonggeun Cho, Cheol Ryong Ku, Sang-Guk Lee, Kyung-A Lee, Jeong-Ho Kim; Endocrinol Metab. 2020;35(4):960-964. Published online November 20, 2020; DOI: https://doi.org/10.3803/EnM.2020.732

4,768 View
107 Download
4 Web of Science
3 Crossref

Abstract PDF Supplementary Material PubReader ePub

Appropriate reference intervals of serum insulin-like growth factor I (IGF-I) is important for diagnosing and monitoring patients with growth hormone-related diseases. To establish reference intervals, adult individuals (n=1,334, 680 men and 654 women) were divided into six age groups (20–29, 30–39, 40–49, 50–59, 60–69, ≥70). Serum IGF-I was measured by chemiluminescence immunoassay (Liaison). Concordance of patient classification based on reference intervals, manufacturer’s intervals, and standard deviation score (SDS) was evaluated. New reference intervals had higher upper and lower limits than those specified by the manufacturer. The agreement between classification using new reference interval and the manufacturer’s reference interval, and that using new reference interval and SDS was 75.0% (weighted kappa, 0.17), 91.9% (weighted kappa, 0.51) in men and 91.0% (weighted kappa, 0.41), 92.5% (weighted kappa, 0.53) in women, respectively. Reference intervals should be established not only based on age and sex, but also on ethnicity and assay method.

Citations

Citations to this article as recorded by

Challenges of insulin-like growth factor-1 testing
Rongrong Huang, Junyan Shi, Ruhan Wei, Jieli Li
Critical Reviews in Clinical Laboratory Sciences.2024; : 1. CrossRef
Male idiopathic hypogonadotropic hypogonadism: Serum insulin-like growth factor-1 and oestradiol levels
Nastaran Salehisedeh, Amir Parhizkar, Parichehreh Yaghmaei, Marjan Sabbaghian
Journal of Human Reproductive Sciences.2022; 15(4): 351. CrossRef
Revisiting the Role of Insulin-like Growth Factor-1 Measurement After Surgical Treatment of Acromegaly
In-Ho Jung, Seonah Choi, Cheol Ryong Ku, Sang-Guk Lee, Eun Jig Lee, Sun Ho Kim, Eui Hyun Kim
The Journal of Clinical Endocrinology & Metabolism.2021; 106(7): e2589. CrossRef

Author index