Evidence map›Paper›PMID 27622678›Full record

ArticleBrain, behavior, and immunity2017

Serum C-reactive protein in adolescence and risk of schizophrenia in adulthood: A prospective birth cohort study.

Stephen A Metcalf, Peter B Jones, Tanja Nordstrom, Markku Timonen, Pirjo Mäki, Jouko Miettunen, Erika Jääskeläinen, Marjo-Riitta Järvelin, Jan Stochl, Graham K Murray and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Brain, behavior, and immunity, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 7 pooled it
4.2field-weighted citation impact, top 5% 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

66 citing papers in PubMed, 7 syntheses or guidelines pooled it, 135 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. COVID-19 and New-Onset Psychosis: A Comprehensive Review.Journal of personalized medicine · 2023
    Review
  19. Early Life Stress, Neuroinflammation, and Psychiatric Illness of Adulthood.Advances in experimental medicine and biology · 2023
    Review
  20. Article

6 more citing papers are in PubMed but not listed here.

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

12 authors at 3 institutions in 3 countries.

Stephen A MetcalfDepartment of Psychiatry, University of Cambridge, Cambridge, UK.
Peter B JonesDepartment of Psychiatry, University of Cambridge, Cambridge, UK.
Tanja NordstromCenter for Life-Course Health Research, University of Oulu, Finland; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Finland.
Markku TimonenCenter for Life-Course Health Research, University of Oulu, Finland.
Pirjo MäkiCenter for Life-Course Health Research, University of Oulu, Finland; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Finland; Department of Psychiatry, Research Unit of Clinical Neuroscience, University of Oulu, Finland; Department of Psychiatry, Oulu University Hospital, Finland; Department of Psychiatry, Länsi-Pohja Healthcare District, Finland; Department of Psychiatry, The Middle Ostrobothnia Central Hospital, Kiuru, Finland; Mental Health Services, Joint Municipal Authority of Wellbeing in Raahe District, Finland; Mental Health Services, Basic Health Care District of Kallio, Finland; Visala Hospital, The Northern Ostrobothnia Hospital District, Finland.
Jouko MiettunenCenter for Life-Course Health Research, University of Oulu, Finland; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Finland.
Erika JääskeläinenCenter for Life-Course Health Research, University of Oulu, Finland; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Finland.
Marjo-Riitta JärvelinCenter for Life-Course Health Research, University of Oulu, Finland; Department of Epidemiology and Biostatistics, MRC-PHE Centre for Environment & Health, School of Public Health, Imperial College London, UK; Biocenter Oulu, P.O. Box 5000, Aapistie 5A, FI-90014, University of Oulu, Finland; Unit of Primary Care, Oulu University Hospital, Kajaanintie 50, P.O. Box 20, FI-90220 Oulu 90029 OYS, Finland.
Jan StochlDepartment of Psychiatry, University of Cambridge, Cambridge, UK.
Graham K MurrayDepartment of Psychiatry, University of Cambridge, Cambridge, UK.
Juha VeijolaCenter for Life-Course Health Research, University of Oulu, Finland; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Finland.
Golam M KhandakerDepartment of Psychiatry, University of Cambridge, Cambridge, UK. Electronic address: gmk24@medschl.cam.ac.uk.
University of Cambridge · GBUniversity of Oulu · FIOulu University Hospital · FI

Funding

Department of Health RP-PG-0606-1335Medical Research Council G0701911Medical Research Council MR/K006665/1Wellcome Trust 093875Wellcome Trust 201486/Z/16/Z
6 · The paper itself

Abstract

objectiveMeta-analyses of cross-sectional studies confirm an increase in circulating inflammatory markers during acute psychosis. Longitudinal studies are scarce but are needed to understand whether elevated inflammatory markers are a cause or consequence of illness. We report a longitudinal study of serum C-reactive protein (CRP) in adolescence and subsequent risk of schizophrenia and related psychoses in adulthood in the Northern Finland Birth Cohort 1986.

methodSerum high-sensitivity CRP was measured at age 15/16 years in 6362 participants. ICD-10 diagnoses of schizophrenia and related psychoses were obtained from centralised hospital inpatient and outpatient registers up to age 27 years. Logistic regression calculated odds ratios (ORs) for psychotic outcomes associated with baseline CRP levels analysed as both continuous and categorical variables using American Heart Association criteria. Age, sex, body mass index, maternal education, smoking, and alcohol use were included as potential confounders.

resultsBy age 27years, 88 cases of non-affective psychosis (1.38%), of which 22 were schizophrenia (0.35%), were identified. Adolescent CRP was associated with subsequent schizophrenia. The adjusted OR for schizophrenia by age 27yearsfor each standard deviation (SD) increase in CRP levels at age 15/16yearswas 1.25 (95% CI, 1.07-1.46), which was consistent with a linear, dose-response relationship (P-value for quadratic term 0.23). Using CRP as a categorical variable, those with high (>3mg/L) compared with low (<1mg/L) CRP levels at baseline were more likely to develop schizophrenia; adjusted OR 4.25 (95% CI, 1.30-13.93). There was some indication that higher CRP was associated with earlier onset of schizophrenia (r

conclusionsA longitudinal association between adolescent CRP levels and adult schizophrenia diagnosis indicates a potentially important role of inflammation in the pathogenesis of the illness, although the findings, based on a small number of cases, need to be interpreted with caution and require replication in other samples.

Indexed as

AdolescentAdultAge of OnsetCohort StudiesC-Reactive ProteinCross-Sectional StudiesFemaleFinlandHumansInternational Classification of DiseasesLongitudinal StudiesMaleProspective StudiesPsychiatric Status Rating ScalesPsychotic DisordersRegistriesC-Reactive ProteinAdolescentAdultC-reactive proteinInflammatory markersLongitudinal studyPsychotic disordersSchizophreniaSystemic inflammation

Identifiers

PMID27622678
PMCPMC5176002
OpenAlexW2520656017

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.