Evidence map›Paper›PMID 38645932›Full record

ArticlePractical laboratory medicine2024

Comparative analysis of salivary cortisol measurements using different assay methods in relation to serum-free cortisol measurement.

Anna Lee, Sooah Jang, Sanghoo Lee, Hyun-Kyung Park, In-Young Kim, Ryunsup Ahn, Jeong-Ho Seok, Kyoung-Ryul Lee

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Practical laboratory medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06970886 (Effects of Rhythm-Based Music on Anxiety, Glucose, and Cortisol in Pregnancies With Gestational Diabetes), which is not on this map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
2.3field-weighted citation impact, top 12% 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.

NCT06970886 nanot yet recruitingnot on this mapstarted 2025, after this paper: background citation

Effects of Rhythm-Based Music on Anxiety, Glucose, and Cortisol in Pregnancies With Gestational Diabetes

TypeinterventionalSponsorEsin Ceber Turfan, ProfessorRan2025 to 2027Enrolled180ConditionsGestational Diabetes Mellitus in Pregnancy, Anxiety, Blood Sugar, HighArmsRhythm-Based Music Intervention
3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 8 citations in OpenAlex.

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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

8 authors at 2 institutions in 1 country.

Anna LeeDepartment of Laboratory Medicine, Seoul Clinical Laboratories, Yong-In, Republic of Korea.
Sooah JangResearch Institute of Minds.AI, Co. Ltd., Seoul, Republic of Korea.
Sanghoo LeeCenter for Companion Biomarker, Seoul Clinical Laboratories Healthcare Inc., Yong-In, Republic of Korea.
Hyun-Kyung ParkDepartment of Laboratory Medicine, Seoul Clinical Laboratories, Yong-In, Republic of Korea.
In-Young KimResearch Institute of Minds.AI, Co. Ltd., Seoul, Republic of Korea.
Ryunsup AhnInstitute of Behavioral Sciences in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
Jeong-Ho SeokResearch Institute of Minds.AI, Co. Ltd., Seoul, Republic of Korea.
Kyoung-Ryul LeeDepartment of Laboratory Medicine, Seoul Clinical Laboratories, Yong-In, Republic of Korea.
Seoul Medical Center · KRYonsei University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives: Salivary cortisol reflects the biologically active form of serum cortisol, offering a noninvasive evaluation method for the diurnal rhythm of the hypothalamic-pituitary-adrenal (HPA) axis. While liquid chromatography-tandem mass spectrometry (LC-MS/MS) is known for its specificity, immunoassays (IA) are commonly used because of their simplicity. This study aimed to assess the performance of salivary cortisol measurement using both IA and LC-MS/MS in comparison to serum-free cortisol measurement. Methods: Assay results for 188 saliva and 94 serum samples from 47 participants were analyzed. Salivary samples collected at different time points were analyzed using IA and LC-MS/MS. Serum samples were analyzed for cortisol, cortisol-binding globulin, and free cortisol. The statistical analyses included correlations and method comparisons. Results: The diurnal salivary cortisol profiles exhibited a comparable circadian rhythm pattern; however, the concentrations measured using IA were consistently higher than those measured using LC-MS/MS. The correlation analysis revealed robust associations among salivary cortisol (IA), salivary cortisol (LC-MS/MS), and serum-free cortisol levels (LC-MS/MS). However, the method comparison revealed a systematic bias between IA and LC-MS/MS in salivary cortisol measurement. Conclusions: This study contributes to the ongoing debate on assay techniques by affirming the suitability of IA and LC-MS/MS for salivary cortisol measurement to assess dynamic changes in HPA axis activity. The identified systematic bias emphasizes the importance of selecting methods based on specific research or clinical requirements.

Indexed as

Diurnal rhythmHypothalamic-pituitary-adrenal axisImmunoassayLiquid chromatography-tandem mass spectrometrySalivary cortisol

Identifiers

PMID38645932
PMCPMC11026831
OpenAlexW4394602185

What OpenQuestion holds

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LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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.