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Revisiting vitamin D status and supplementation for inpatients with intellectual and developmental disability in the North of England, UK

Lookup NU author(s): Dr Iain McKinnonORCiD



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Background: Vitamin D deficiency is common among people withIntellectual and Developmental Disability (IDD) and is linked to worsehealth outcomes.Aims: To re-evaluate vitamin D testing and supplementation amonginpatients with IDD and examine any correlates with physical healthconditions including COVID-19.Method: Records of all inpatients between January 2019 and July 2020 were examined for 25-hydroxyvitamin D [25(OH)D] level, ward area, supplementation status, test seasonality, medication, and health status.Results: Mean 25(OH)D level for supplemented (800IU/day) patients was 75nmol/l (SD 20) compared to 40nmol/l (SD 19) in the nonsupplemented group (p<0.001). Thirty-eight percent of those who were inpatients during the first wave of the COVID-19 pandemic developed symptoms, but the small sample size could not establish vitamin D levels as a predictor of outcome.Conclusions: Vitamin D (800IU/day) supplementation is effective butadequacy of the nationally recommended dose of 400IU/day is unclear. Links to COVID-19 merit further research.

Publication metadata

Author(s): Dudley B, Ostrowski M, Ciausu V, Ince C, McKinnon I

Publication type: Article

Publication status: Published

Journal: BJPsych Bulletin

Year: 2022

Volume: 46

Issue: 4

Pages: 214-220

Print publication date: 01/08/2022

Online publication date: 18/05/2021

Acceptance date: 15/04/2021

Date deposited: 18/05/2021

ISSN (print): 2056-4708

ISSN (electronic): 2056-4694

Publisher: Cambridge University Press


DOI: 10.1192/bjb.2021.55


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