Evidence map›Paper›PMID 33684738›Full record

ArticleSchizophrenia research2021

Childhood inflammatory markers and risks for psychosis and depression at age 24: Examination of temporality and specificity of association in a population-based prospective birth cohort.

Benjamin I Perry, Stanley Zammit, Peter B Jones, Golam M Khandaker

Open access · hybridAbstract read
In one paragraph

Article in Schizophrenia research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
2.0field-weighted citation impact, top 15% 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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 41 citations in OpenAlex.

  1. Pooled it
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  13. Childhood maltreatment influences adult brain structure through its effects on immune, metabolic, and psychosocial factors.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  17. A redux of schizophrenia research in 2021.Schizophrenia research · 2022
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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

4 authors at 3 institutions in 1 country.

Benjamin I PerryDepartment of Psychiatry, University of Cambridge School of Clinical Medicine, Cambridge, UK; Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, UK. Electronic address: bip20@medschl.cam.ac.uk.
Stanley ZammitCentre for Academic Mental Health, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK; MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK.
Peter B JonesDepartment of Psychiatry, University of Cambridge School of Clinical Medicine, Cambridge, UK; Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, UK.
Golam M KhandakerDepartment of Psychiatry, University of Cambridge School of Clinical Medicine, Cambridge, UK; Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, UK; Centre for Academic Mental Health, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK; MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK; Avon and Wiltshire Mental Health Partnership NHS Trust, UK.
University of Cambridge · GBCambridgeshire and Peterborough NHS Foundation Trust · GBCardiff University · GB

Funding

Medical Research Council 102215/2/13/2Medical Research Council G9815508Medical Research Council MC_PC_15018Medical Research Council MC_PC_17213Medical Research Council MC_PC_19009Medical Research Council MR/L010305/1Medical Research Council MR/M006727/1Medical Research Council MR/S037675/1Wellcome Trust 076467/Z/05/ZWellcome Trust 08426812/Z/07/ZWellcome Trust 201486/Z/16/Z
6 · The paper itself

Abstract

backgroundCross-sectional studies have reported elevated concentrations of inflammatory markers in psychosis and depression. However, questions regarding temporality and specificity of association, crucial for understanding the potential role of inflammation, remain.

methodsBased on 2224 ALSPAC birth cohort participants, we used regression analyses to test associations of interleukin-6 (IL-6) and C-reactive protein (CRP) levels at age 9 with risks for psychosis (psychotic experiences; negative symptoms; psychotic disorder), and depression (depressive episode; symptom score) at age 24. Regression models were adjusted for sex, ethnicity, social class and body mass index. We tested for linearity (using quadratic terms) and specificity (using bi-variate probit regression) of association, and used multiple imputation to explore the impact of missing data.

resultsAfter adjustments, higher IL-6 levels at age 9 were associated with increased risk of psychotic disorder (OR = 1.56; 95% C.I., 1.09-2.21 per SD increase in IL-6; OR=2.60; 95% C.I., 1.04-6.53 for the top compared with bottom third of IL-6) and depressive episode (OR = 1.14; 95% C.I., 0.99-1.32 per SD increase in IL-6; OR = 1.49; 95% C.I., 1.02-2.18 for the top compared with bottom third of IL-6). IL-6 was associated with negative symptoms after adjusting for depression (β = 0.09; 95% C.I., 0.01-0.22). There was no evidence for outcome-specific associations of IL-6. Childhood CRP was not associated with adult psychosis or depression.

conclusionsEvidence for similar, longitudinal, dose-response associations suggest that elevated childhood IL-6 could be a shared risk factor for adult psychosis and depression. The IL-6 pathway may represent a novel target for treatment and prevention of these disorders.

Indexed as

DepressionPsychotic DisordersAdultChildC-Reactive ProteinCross-Sectional StudiesHumansInflammationLongitudinal StudiesProspective StudiesYoung AdultC-Reactive ProteinALSPACCRPDepressionIL-6InflammationLongitudinal studyPsychosis

Identifiers

PMID33684738
PMCPMC8224182
OpenAlexW3106862489

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.