Cited by 9Clinical Laboratory Practices and Quality ControlHormonal and reproductive studiesHypothalamic control of reproductive hormones

Estimating testosterone concentrations in adolescent girls: Comparison of two direct immunoassays to liquid chromatography-tandem mass spectrometry

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McCartney, Christopher R., Burt Solorzano, Christine M., Patrie, James T., Marshall, John C., Haisenleder, Daniel J.·2018·Steroids

Abstract

Context The appropriate role of direct total testosterone (T) immunoassays in reproductive research is controversial.Objective To assess the concordance between two direct immunoassays and a liquid chromatography-tandem mass spectrometry (LC-MS/MS) assay for total T in adolescent girls with measured concentrations < 50 ng/dl.Design Cross-sectional analysis.Setting Academic medical center.Participants Adolescent girls (age 8.4-18.1 years) participating in clinical research protocols.Intervention Paired blood samples were obtained for total T by LC-MS/MS (n = 66; Mayo Clinic Laboratory) and by direct immunoassay (Center for Research in Reproduction)-either radioimmunoassay (RIA; n = 31) or chemiluminescence immunoassay (CLIA; n = 35). At the time of assay, laboratories were unaware that results would be compared.Main outcome measure Measurement agreement between immunoassay and LC-MS/MS.Results Measured T concentrations (LC-MS/MS) were <7 to 44 ng/dl. The average difference between RIA and LC-MS/MS was 0.84 [-0.89, 2.56] ng/dl (mean [95% confidence interval]). RIA correlated very strongly with LC-MS/MS (r = 0.899; p < 0.0001); and both Deming regression and Bland-Altman analysis suggested no bias. The average difference between chemiluminescence and LC-MS/MS was 1.39 [-0.83, 3.60] ng/dl. CLIA correlated strongly with LC-MS/MS (r = 0.806; p < 0.0001). While Bland-Altman analysis suggested no systematic bias, Deming regression analysis suggested that, as measured values increased, values obtained by CLIA tended to be progressively, albeit only modestly, higher than those obtained by LC-MS/MS.Conclusions These data support the use of rigorously-performed and carefully-validated direct T immunoassays in high-quality endocrine research in peripubertal adolescent girls.

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Crossref · 10.1016/j.steroids.2018.09.001

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Authors
McCartney, C. R., Burt Solorzano, C. M., Patrie, J. T., Marshall, J. C., & Haisenleder, D. J.
Affiliations
  • University of Virginia Medical Center (US)
  • University of Virginia (US)
  • University of Virginia Health System (US)
Corresponding author
McCartney, Christopher R.
Venue
Steroids
Publisher
Elsevier BV
Published
2018-12
Volume
140
Pages
62-69
ISSN
0039-128X (ISSN-L)
OpenAlex
W2890337318
Cited by
9
References
18
Citations by year
2025: 2 · 2024: 1 · 2022: 3 · 2020: 3
FWCI
0.51
Type
journal article
Language
en
Open access
Locations
  • Steroids (acceptedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
Eunice Kennedy Shriver National Institute of Child Health and Human Development/National Institutes of Health
Topics
  • Health Sciences › Medicine › Physiology › Clinical Laboratory Practices and Quality Control
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal and reproductive studies
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
Keywords
total testosterone, direct immunoassay, radioimmunoassay, chemiluminescence immunoassay, liquid chromatography-tandem mass spectrometry, assay agreement, adolescent girls, peripubertal girls, androgen deficiency, endocrine research
MeSH terms
Adolescent, Child, Chromatography, Liquid, Female, Humans, Immunoassay, Testosterone, Tandem Mass Spectrometry

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