3388203
Last Update Posted: 2018-01-02
Recruiting has ended
All Genders accepted | 18 Years + |
74235 Estimated Participants | No Expanded Access |
Observational Study | Does not accept healthy volunteers |
LC-MS/MS 25(OH)D Status in a Large Cohort
The present study assessed serum 25(OH)D in a cohort of 74235 outpatients by liquid-chromatography-tandem-mass-spectrometry (LC-MS/MS).
The investigators studied the distribution of serum 25(OH)D concentrations in males and females of different age groups, the prevalence of measurable amounts of 25(OH)D2 and seasonal variability.
Measurements were performed under routine circumstances. Samples were collected in serum tubes with clot-activator. As per routine procedure, samples were centrifuged upon arrival in the lab and stored at 4° C until measurement. 25(OH)D3 and 25(OH)D2 were quantitated separately. Results from subjects <18 years were excluded from the analysis. The study was approved by the local Ethics Committee.
Eligibility
Relevant conditions:
25(OH)D Measurement and 25(OH)D Deficiency
If you aren't sure if you meet the criteria above speak to your healthcare professional. Criteria may be updated but not reflected here, do not hesitate to contact the trial if you think are close to fitting criteria.
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Data sourced from ClinicalTrials.gov