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Jeong-Ho Kim 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
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  • 3 Crossref
AbstractAbstract PDFSupplementary MaterialPubReader   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
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