Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
74235 participants
OBSERVATIONAL
2015-01-31
2017-06-30
Brief Summary
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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.
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Detailed Description
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Conditions
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Study Design
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COHORT
RETROSPECTIVE
Interventions
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25(OH)D measurement, PTH measurement
25(OH)D analyses by LC-MS/MS were performed as part of our routine clinical work with a commercial kit from Recipe (Munich, Germany) ; PTH was measured in lithium-heparin plasma using the PTH STAT assay from Roche Diagnostics (Mannheim, Germany) on a Cobas 8000 auto-analyzer.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
18 Years
ALL
No
Sponsors
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Azienda Ospedaliera di Bolzano
OTHER
Responsible Party
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Silvia Giuliani
Department of Clinical Pathology
Principal Investigators
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MARKUS HERRMANN, Medicine
Role: PRINCIPAL_INVESTIGATOR
Clinical Institute for Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Austria
References
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Giovannucci E, Liu Y, Rimm EB, Hollis BW, Fuchs CS, Stampfer MJ, Willett WC. Prospective study of predictors of vitamin D status and cancer incidence and mortality in men. J Natl Cancer Inst. 2006 Apr 5;98(7):451-9. doi: 10.1093/jnci/djj101.
Holick MF, Binkley NC, Bischoff-Ferrari HA, Gordon CM, Hanley DA, Heaney RP, Murad MH, Weaver CM; Endocrine Society. Evaluation, treatment, and prevention of vitamin D deficiency: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab. 2011 Jul;96(7):1911-30. doi: 10.1210/jc.2011-0385. Epub 2011 Jun 6.
Yetley EA. Assessing the vitamin D status of the US population. Am J Clin Nutr. 2008 Aug;88(2):558S-564S. doi: 10.1093/ajcn/88.2.558S.
Powe CE, Karumanchi SA, Thadhani R. Vitamin D-binding protein and vitamin D in blacks and whites. N Engl J Med. 2014 Feb 27;370(9):880-1. doi: 10.1056/NEJMc1315850. No abstract available.
Farrell CJ, Martin S, McWhinney B, Straub I, Williams P, Herrmann M. State-of-the-art vitamin D assays: a comparison of automated immunoassays with liquid chromatography-tandem mass spectrometry methods. Clin Chem. 2012 Mar;58(3):531-42. doi: 10.1373/clinchem.2011.172155. Epub 2012 Jan 9.
Farrell C, Soldo J, Williams P, Herrmann M. 25-Hydroxyvitamin D testing: challenging the performance of current automated immunoassays. Clin Chem Lab Med. 2012 Nov;50(11):1953-63. doi: 10.1515/cclm-2012-0522.
Hilger J, Friedel A, Herr R, Rausch T, Roos F, Wahl DA, Pierroz DD, Weber P, Hoffmann K. A systematic review of vitamin D status in populations worldwide. Br J Nutr. 2014 Jan 14;111(1):23-45. doi: 10.1017/S0007114513001840. Epub 2013 Aug 9.
Other Identifiers
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0055719-BZ
Identifier Type: -
Identifier Source: org_study_id
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