Borai, Anwar, Livingstone, Callum and Ferns, Gordon (2013) Reference change values for insulin and insulin-like growth factor binding protein-1 (IGFBP-1) in individuals with varying degrees of glucose tolerance. Scandinavian Journal of Clinical & Laboratory Investigation, 73 (4). pp. 274-278. ISSN 0036-5513

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Abstract

Background. The reference change value (RCV) is an important parameter of biological variation used to assess the significance of differences between consecutive results obtained in a single individual. This study evaluated the RCV for insulin-like growth factor binding protein-1 (IGFBP-1) and fasting serum insulin (FSI) in individuals with different degrees of glucose tolerance. Methods. IGFBP-1 and FSI concentrations were measured in 33 fasting subjects who had two blood samples taken 10 days apart. Subjects were distributed in the following categories: Normal glucose tolerance (NGT), n = 15, impaired fasting glucose (IFG), n = 9 and impaired glucose tolerance (IGT), n = 9. Results. The RCV values for IGFBP-1 were 59.9%, 83.2% and 93.0% and for FSI were 68.5%, 79.0% and 93.4% for subjects with NGT, IFG and IGT respectively. Conclusions. The RCVs for IGFBP-1 and FSI increase with deteriorating glucose tolerance. When monitoring IGFBP-1 and FSI, changes in concentrations should be interpreted using glycaemic category-specific RCV values.

Item Type:	Article
Schools and Departments:	Brighton and Sussex Medical School > Division of Medical Education
Subjects:	R Medicine > RB Pathology > RB037 Clinical pathology. Laboratory technique
Depositing User:	Gordon Ferns
Date Deposited:	12 Sep 2014 13:04
Last Modified:	12 Sep 2014 13:04
URI:	http://srodev.sussex.ac.uk/id/eprint/49908

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