Evidence map›Paper›PMID 33352636›Full record

ArticleBiomolecules2020

Measurement of Serum Testosterone in Nondiabetic Young Obese Men: Comparison of Direct Immunoassay to Liquid Chromatography-Tandem Mass Spectrometry.

Ana Martínez-Escribano, Julia Maroto-García, Maximiliano Ruiz-Galdón, Rocío Barrios-Rodríguez, Juan J Álvarez-Millán, Pablo Cabezas-Sánchez, Isaac Plaza-Andrades, María Molina-Vega, Francisco J Tinahones, María Isabel Queipo-Ortuño and 1 more

Open access · goldAbstract readComparative Study
In one paragraph

Article in Biomolecules, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 30% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 9 citations in OpenAlex.

  1. [False positives in female testosterone testing and the diagnostic value of mass spectrometry].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 1 country.

Ana Martínez-EscribanoDepartment of Surgery, Biochemistry and Immunology, Málaga University, 29010 Málaga, Spain.
Julia Maroto-GarcíaDepartment of Surgery, Biochemistry and Immunology, Málaga University, 29010 Málaga, Spain.
Maximiliano Ruiz-GaldónDepartment of Surgery, Biochemistry and Immunology, Málaga University, 29010 Málaga, Spain.
Rocío Barrios-RodríguezDepartmento de Medicina Preventiva y Salud Pública, Universidad de Granada, 18011 Granada, Spain.
Juan J Álvarez-MillánConsulting Químico Sanitario (CQS Lab), 28521 Madrid, Spain.
Pablo Cabezas-SánchezConsulting Químico Sanitario (CQS Lab), 28521 Madrid, Spain.
Isaac Plaza-AndradesDepartment of Medical Oncology, Virgen de la Victoria and Regional University Hospitals-IBIMA, UMA-CIMES, 29010 Málaga, Spain.
María Molina-VegaDepartment of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, 29010 Malaga, Spain.ORCID 0000-0002-0147-4369
Francisco J TinahonesDepartment of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, 29010 Malaga, Spain.
María Isabel Queipo-OrtuñoDepartment of Medical Oncology, Virgen de la Victoria and Regional University Hospitals-IBIMA, UMA-CIMES, 29010 Málaga, Spain.ORCID 0000-0002-2867-0845
José Carlos Fernández-GarcíaDepartment of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, 29010 Malaga, Spain.ORCID 0000-0003-2229-8488
Universidad de Málaga · ESInstituto de Investigación Biomédica de Málaga · ESInstituto de Salud Carlos III · ESHospital Clínico Universitario Virgen de la Victoria · ESUniversidad de Granada · ES

Funding

Miguel Servet Type II" program from ISCIII, co-funded by the Fondo Europeo de Desarrollo Regional - FEDER CPI13/00003Nicolas Monardes" research program of the Consejería de Salud, Junta de Andalucía, Spain C-0030-2018Rio Hortega grant from Instituto de Salud Carlos III CM18-00120Servicio Andaluz de Salud PI-0173-2013Servicio Andaluz de Salud (SAS) B-0003-2017
6 · The paper itself

Abstract

Hypoandrogenemia, a frequent finding in men with obesity, is defined by low concentrations of serum testosterone. Although immunoassay (IA) is the most used method for the determination of this steroid in clinical practice, liquid chromatography-mass spectrometry (LC-MS/MS) is considered a more reliable method. In this study, we aimed to compare IA versus LC-MS/MS measurement for the diagnosis of hypoandrogenemia in a cohort of 273 nondiabetic young obese men. Mean total testosterone (TT) levels were 3.20 ± 1.24 ng/mL for IA and 3.78 ± 1.4 ng/mL for LC-MS/MS. 53.7% and 26.3% of patients were classified as presenting hypoandrogenemia with IA and LC-MS/MS, respectively. Considering LC-MS/MS as the reference method, sensitivity and specificity of IA were 91.4% (95% CI 82.3-96.8) and 61.1% (95% CI 54.0-67.8), respectively. IA presented an AUC of 0.879 (95% CI 0.83-0.928). Multivariate regression analysis indicated that sex hormone-binding globulin (SHBG) concentrations (

Indexed as

AdultChromatographyChromatography, LiquidHumansImmunoassayLimit of DetectionMaleMiddle AgedObesityRegression AnalysisReproducibility of ResultsSensitivity and SpecificityTandem Mass SpectrometryTestosteroneTestosteronechromatographyimmunoassayobesitytestosterone

Identifiers

PMID33352636
PMCPMC7765982
OpenAlexW3112496624

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.