Evidence map›Paper›PMID 34412716›Full record

Observational studyPsychological medicine2023

Association of trauma, post-traumatic stress disorder and non-affective psychosis across the life course: a nationwide prospective cohort study.

Judith Allardyce, Anna-Clara Hollander, Syed Rahman, Christina Dalman, Stan Zammit

Open access · hybridFull text readObservational Study
In one paragraph

Observational study in Psychological medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 28% of its field
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

2 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
  2. 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

5 authors at 3 institutions in 2 countries.

Judith AllardyceDivision of Psychological Medicine and Clinical Neuroscience, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, Wales.ORCID 0000-0003-4094-552X
Anna-Clara HollanderDept of Global Public Health, Karolinksa Institutet, Solna, Sweden.ORCID 0000-0002-1246-5804
Syed RahmanDept of Global Public Health, Karolinksa Institutet, Solna, Sweden.
Christina DalmanDivision of Public Health Epidemiology, Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden.ORCID 0000-0002-3579-2357
Stan ZammitDivision of Psychological Medicine and Clinical Neuroscience, MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, Wales.
Karolinska Institutet · SECardiff University · GBUniversity of Bristol · GB

Funding

Medical Research Council MR/L010305/1Wellcome Trust 209176/Z/17/Z
6 · The paper itself

Abstract

backgroundWe aimed to examine the temporal relationships between traumatic events (TE), post-traumatic stress disorder (PTSD) and non-affective psychotic disorders (NAPD).

methodsA prospective cohort study of 1 965 214 individuals born in Sweden between 1971 and 1990 examining the independent effects of interpersonal and non-interpersonal TE on incidence of PTSD and NAPD using data from linked register data (Psychiatry-Sweden). Mediation analyses tested the hypothesis that PTSD lies on a causal pathway between interpersonal trauma and NAPD.

resultsIncreasing doses of interpersonal and non-interpersonal TE were independently associated with increased risk of NAPD [linear-trend incidence rate ratios (IRR)

conclusionDespite the limitations to causal inference inherent in observational designs, the large effect-sizes observed between trauma, PTSD and NAPD in this study, consistent across sensitivity analyses, suggest that trauma may be a component cause of psychotic disorders. However, PTSD diagnosis might not be a good proxy for the likely complex psychological mechanisms mediating this association.

Indexed as

Psychotic DisordersStress Disorders, Post-TraumaticHumansProspective StudiesRisk FactorsSwedenbirth cohortmediationpsychotic disordersPTSDTrauma

Identifiers

PMID34412716
PMCPMC10009379
OpenAlexW3184012428

What OpenQuestion holds

Textfull text, public
LicenceCC BY
measurements read18
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.