ArticleNutrients2021
Analytical Performance Specifications for 25-Hydroxyvitamin D Examinations.
Article in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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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.
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.
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Who cites it
7 citing papers in PubMed, 22 citations in OpenAlex.
- Positive Effects of Vitamin D Supplementation in Patients Hospitalized for COVID-19: A Randomized, Double-Blind, Placebo-Controlled Trial.Nutrients · 2022Trial
- Clinical Reclassification of Vitamin D Status Across Three Automated Immunoassays After Comparability Study.Nutrients · 2026Article
- Commutability assessment of new standard reference materials (SRMs) for determining serum total 25-hydroxyvitamin D using ligand binding and liquid chromatography-tandem mass spectrometry (LC-MS/MS) assays.Analytical and bioanalytical chemistry · 2025Article
- Biological variation in serum thyroid, iron metabolism, and plasma bone metabolism biomarkers in patients with type 2 diabetes mellitus.Frontiers in endocrinology · 2025Article
- Benefits of Vitamin D in Health and Diseases.Nutrients · 2023Article
- Vitamin D Metabolites: Analytical Challenges and Clinical Relevance.Calcified tissue international · 2023Review
- Article
Corrections and comments
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Authors and funding
12 authors at 8 institutions in 9 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Currently the 25-hydroxy vitamin D (25(OH)D) concentration is thought to be the best estimate of the vitamin D status of an individual. Unfortunately, its measurement remains complex, despite recent technological advances. We evaluated the biological variation (BV) of 25(OH)D in order to set analytical performance specifications (APS) for measurement uncertainty (MU). Six European laboratories recruited 91 healthy participants. The 25(OH)D concentrations in K
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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.