Evidence map›Paper›PMID 22848531›Full record

Trial reportPloS one2012

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

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

Abstract readClinical Trial
In one paragraph

Trial report in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Observational
  5. Article
  6. Vitamin D and mental health in children and adolescents.European child & adolescent psychiatry · 2017
    Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Anna-Maija TolppanenMRC Centre for Causal Analyses in Translational Epidemiology, School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom.
Adrian Sayers
William D Fraser
Glyn Lewis
Stanley Zammit
John McGrath
Debbie A Lawlor

Funding

Medical Research Council G0600705Medical Research Council G0701603Medical Research Council G0801462Wellcome Trust 079960Wellcome Trust 092731
6 · The paper itself

Abstract

objectiveNon-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)D(3) and 25(OH)D(2), have similar associations with psychosis-related outcomes.

methodsWe investigated the association between serum 25(OH)D(3) and 25(OH)D(2) concentrations and psychotic experiences in a prospective birth cohort study. Serum 25(OH)D(3) and 25(OH)D(2) concentrations were measured at mean age 9.8 years and psychotic experiences assessed at mean age 12.8 years by a psychologist (N = 3182).

resultsHigher 25(OH)D(3) 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)D(2) 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)D(2) 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.

conclusionsOur findings of an inverse association of 25(OH)D(3) with definite psychotic experiences is consistent with the hypothesis that vitamin D may protect against psychosis-related outcomes.

Indexed as

25-Hydroxyvitamin D 2AdolescentAdultCalcifediolChildChild, PreschoolFemaleFollow-Up StudiesHumansMaleProspective StudiesPsychotic Disorders25-Hydroxyvitamin D 2Calcifediol

Identifiers

PMID22848531
PMCPMC3405076

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