Changing Incidence of Serum 25-Hydroxyvitamin D Values Above 50 ng/mL: A 10-Year Population-Based Study.

Autor:	Dudenkov DV; Department of Internal Medicine, Mayo Clinic, Rochester, MN. Electronic address: dudenkov.daniel@mayo.edu., Yawn BP; Olmsted Medical Center, Rochester, MN., Oberhelman SS; Department of Family Medicine, Mayo Clinic, Rochester, MN., Fischer PR; Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN., Singh RJ; Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN., Cha SS; Department of Health Science Research, Mayo Clinic, Rochester, MN., Maxson JA; Department of Family Medicine, Mayo Clinic, Rochester, MN., Quigg SM; Department of Family Medicine, Mayo Clinic, Rochester, MN., Thacher TD; Department of Family Medicine, Mayo Clinic, Rochester, MN.
Jazyk:	angličtina
Zdroj:	Mayo Clinic proceedings [Mayo Clin Proc] 2015 May; Vol. 90 (5), pp. 577-86.
DOI:	10.1016/j.mayocp.2015.02.012
Abstrakt:	Objective: To determine the incidence trend of 25-hydroxyvitamin D (25(OH)D) values above 50 ng/mL and associated toxicity. Patients and Methods: We conducted a retrospective population-based study in Olmsted County, Minnesota, in the 10-year period from January 1, 2002, through December 31, 2011, by using the Rochester Epidemiology Project. Individuals were eligible if they resided in Olmsted County during the study period and had a measured 25(OH)D value above 50 ng/mL. The date of the first 25(OH)D value above 50 ng/mL was considered the index date for incidence determination. Hypercalcemia, the primary vitamin D toxicity, was considered potentially associated with the 25(OH)D concentration if it was measured within 3 months of the 25(OH)D measurement, and such cases had a medical record review. Results: Of 20,308 total 25(OH)D measurements, 1714 (8.4%), 123 (0.6%), and 37 (0.2%) unique persons had 25(OH)D values above 50, 80 and above, and 100 ng/mL and above, respectively. The age- and sex-adjusted incidence of 25(OH)D values above 50 ng/mL increased from 9 to 233 cases per 100,000 person-years from 2002 to 2011 (P<.001), respectively, and was greatest in persons aged 65 years and older (P<.001) and in women (P<.001). Serum 25(OH)D values were not significantly related to serum calcium values (P=.20) or with the risk of hypercalcemia (P=.24). A medical record review identified 4 cases (0.2%) in whom 25(OH)D values above 50 ng/mL were temporally associated with hypercalcemia, but only 1 case had clinical toxicity associated with the highest observed 25(OH)D value of 364 ng/mL. Conclusion: The incidence of 25(OH)D values above 50 ng/mL increased significantly between 2002 and 2011 without a corresponding increase in acute clinical toxicity. (Copyright © 2015 Mayo Foundation for Medical Education and Research. Published by Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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