KOJECKÝ, Vladimír, Jan MATOUS, Bohuslav KIANIČKA, Petr DITE, Zdena ZADOROVA, Jan KUBOVY, Martina HLOSTOVA and Michal UHER. Vitamin D levels in IBD: a randomised trial of weight-based versus fixed dose vitamin D supplementation. SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY. ABINGDON: TAYLOR & FRANCIS LTD, 2020, vol. 55, No 6, p. 671-676. ISSN 0036-5521. Available from: https://dx.doi.org/10.1080/00365521.2020.1774921.
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Basic information
Original name Vitamin D levels in IBD: a randomised trial of weight-based versus fixed dose vitamin D supplementation
Authors KOJECKÝ, Vladimír (203 Czech Republic, belonging to the institution), Jan MATOUS (203 Czech Republic), Bohuslav KIANIČKA (203 Czech Republic, guarantor), Petr DITE (203 Czech Republic), Zdena ZADOROVA (203 Czech Republic), Jan KUBOVY (203 Czech Republic), Martina HLOSTOVA (203 Czech Republic) and Michal UHER (203 Czech Republic, belonging to the institution).
Edition SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY, ABINGDON, TAYLOR & FRANCIS LTD, 2020, 0036-5521.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30219 Gastroenterology and hepatology
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 2.423
RIV identification code RIV/00216224:14110/20:00116133
Organization unit Faculty of Medicine
Doi http://dx.doi.org/10.1080/00365521.2020.1774921
UT WoS 000545392100001
Keywords in English Inflammatory bowel disease; vitamin D deficiency; vitamin D intake; dietary supplements; body weight
Tags 14119612, rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Tereza Miškechová, učo 341652. Changed: 31/8/2020 10:43.
Abstract
Objectives:Body weight is one of the factors affecting blood levels of 25-hydroxyvitamin D (25OHD). The aim of this study was to establish whether a vitamin D (vitD) weight-based dosing is more appropriate to a fixed daily dose in patients with inflammatory bowel disease (IBD). Materials/methods:This was an open label randomised trial. Patients with IBD were assigned to receive oral cholecalciferol at a dose of 28 IU/kg (IU/kg) or 2000 IU per day (IU/day) for 12 weeks during winter months. 25OHD plasma levels and other biochemical parameters were measured at baseline and after supplementation period. The primary outcome measure was 25OHD level after a follow-up period. Results:A total of 173 patients were analysed. The mean BMI was 25.5 +/- 5.1 and initial mean 25OHD level was 62.7 +/- 25.5 nmol/l. A similar increase (9.7 +/- 26.9 vs 9.8 +/- 26.7 nmol/l) in 25OHD levels occurred both in IU/kg and IU/day group. The proportion of subjects with normal and sub-normal levels following the substitution was comparable irrespective of body weight. The change in 25OHD level correlated positively only with the dose of vitD (p < .001) and negatively with the baseline 25OHD level (p < .001). A sustained 25OHD level of 75 nmol/l corresponds with a calculated daily vitD dose of 2034 IU. Conclusions:Weight-based dosing of vitamin D is not superior to a fixed dose in order to maintain stable 25OHD levels in IBD patients. Cholecalciferol dose of 2,000 IU/day is safe and sufficient during winter period.
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