Serum 25-hydroxyvitamin D3 and D2 and non-clinical psychotic experiences in childhood

Anna-Maija Tolppanen, Adrian E Sayers, William D Fraser, Glyn H Lewis, Stanley Zammit, John McGrath, Debbie A Lawlor

Research output: Contribution to journalArticle (Academic Journal)peer-review

22 Citations (Scopus)
177 Downloads (Pure)

Abstract

Objective

Non-clinical psychotic experiences are common and distressing. It has been hypothesized that early life vitamin D deficiency may be a risk factor for psychosis-related outcomes, but it is not known if circulating concentrations of 25-hydroxyvitamin D (25(OH)D) during childhood are associated with psychosis-related outcomes or whether the two different forms of 25(OH)D, (25(OH)D3 and 25(OH)D2, have similar associations with psychosis-related outcomes.

Methods

We investigated the association between serum 25(OH)D3 and 25(OH)D2 concentrations and psychotic experiences in a prospective birth cohort study. Serum 25(OH)D3 and 25(OH)D2 concentrations were measured at mean age 9.8 years and psychotic experiences assessed at mean age 12.8 years by a psychologist (N = 3182).

Results

Higher 25(OH)D3 concentrations were associated with lower risk of definite psychotic experiences (adjusted odds ratio: OR (95% confidence interval: CI) 0.85 (0.75–0.95)). Higher concentrations of 25(OH)D2 were associated with higher risk of suspected and definite psychotic experiences (adjusted odds ratio: OR (95% confidence interval: CI) 1.26 (1.11, 1.43)). Higher 25(OD)D2 concentrations were also weakly associated with definite psychotic experiences (adjusted OR (95% CI) 1.17 (0.96, 1.43), though with wide confidence intervals including the null value.

Conclusions Our findings of an inverse association of 25(OH)D3 with definite psychotic experiences is consistent with the hypothesis that vitamin D may protect against psychosis-related outcomes
Original languageEnglish
Article numbere41575
Number of pages8
JournalPLoS ONE
Volume7
Issue number7
DOIs
Publication statusPublished - 25 Jul 2012

Keywords

  • 25-Hydroxyvitamin D 2
  • Adolescent
  • Adult
  • Calcifediol
  • Child
  • Child, Preschool
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Prospective Studies
  • Psychotic Disorders

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