Peer Reviewed

1

Document Type

Article

Publication Date

25-8-2018

Keywords

25-hydroxyvitamin D (25(OH)D), Cognitive, FEP, Longitudinal, Negative symptoms, Psychosis, Schizophrenia.

Funder/Sponsor

National Institute for Health Research (Grant Reference Number RP-PG-0606-1049)

Comments

The original article is available at https://www.sciencedirect.com

Abstract

BACKGROUND: There is a paucity of longitudinal research investigating vitamin D in people with early psychosis.

METHOD: Vitamin D levels were measured in 168 patients (64% (n = 108) male, mean age 29.3 (9.8) years) with first episode psychosis (FEP), along with measures of clinical state at baseline and at 12 months follow up. We assessed the a) cross sectional, and; b) longitudinal relationships between continuous and categorical 25-hydroxyvitamin D (25(OH)D) levels and clinical symptoms at first contact for psychosis and at 12 months.

RESULTS: In FEP, 80% (n = 134) at baseline, and 76% at 12 months follow up, had suboptimal vitamin D levels (/ml). Suboptimal levels of 25 (OH) D at baseline were not cross-sectionally associated with clinical symptoms. Higher vitamin D levels at baseline (n = 77) were significantly associated with better visual reproduction-immediate recall (β = 0.249, 95%CI = -0.012-0.871, p = 0.044). Higher baseline vitamin D levels were prospectively associated with lower total PANSS (β = -0.24, 95%CI = -0.47-0.01, p = 0.04) and PANSS negative symptom scores (β = -0.12, 95%CI = -0.23-0.01, p = 0.04) at 12 months.

CONCLUSION: We identified a prospective association between higher baseline serum Vitamin D levels and lower total psychotic symptoms and negative symptoms of psychosis at 12 months after first contact for psychosis. The results of this study require replication in larger prospective studies, and highlight the need for large randomised trials to assess the effect of vitamin D supplementation on symptoms of psychosis in FEP.

Disciplines

Medicine and Health Sciences | Psychiatry and Psychology

Citation

Lally J, Ajnakina O, Singh N, Gardner-Sood P, Stubbs B, Stringer D, Di Forti M, David AS, Smith S, Murray RM, Howes OD, Gaughran F. Vitamin D and clinical symptoms in First Episode Psychosis (FEP): A prospective cohort study. Schizophrenia Research. 2018;pii: S0920-9964(18)30503-6.

PubMed ID

30154029

DOI Link

10.1016/j.schres.2018.08.011

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License.

Available for download on Sunday, August 25, 2019

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