CoChat
Sign Up
Cited by 104Schizophrenia research and treatmentMental Health Treatment and AccessMental Health and Psychiatry

Incidence of schizophrenia in south-east London between 1965 and 1997

Open access
Boydell, J., Van Os, J., Lambri, M., Castle, D., Allardyce, J., McCreadie, R. G., Murray, R. M.·2003·British Journal of Psychiatry
DOI 10.1192/bjp.182.1.45
Open this paper in CoChat — free accountOpen PDF

Abstract

BACKGROUND: There has been much debate about changes in the incidence of schizophrenia. AIMS: To identify any changes in incidence of schizophrenia in Camberwell, south-east London, between 1965 and 1997. METHOD: Research Diagnostic Criteria and DSM-III-R diagnoses were generated for all first contacts by the OPCRIT computer program, and incidence rates of schizophrenia in seven time periods were measured. Indirect standardisation and Poisson models were used to measure the effect of time period and to examine interactions with age and gender. RESULTS: There was a continuous and statistically significant increase in the incidence of schizophrenia, which was greatest in people under 35 years of age and was not gender-specific. CONCLUSIONS: The incidence of schizophrenia has doubled in south-east London over the past three decades.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1192/bjp.182.1.45

Cites

23 of 23 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Some studies have found that incidence of psychotic outcomes has increased in recent decades, while others have found no change, or a decrease.

    “Some studies have found that incidence of psychotic outcomes has increased in recent decades (58,59), while others have found no change, or a decrease (60,61).”

    From Association Between Cannabis and Psychosis: Epidemiologic Evidence (2016) · cites this paper as [59]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. R. M. MURRAY, FRCPsych, Institute of Psychiatry, London, UK Correspondence: Dr J. Boydell, Division of Psychological Medicine, Institute of Psychiatry, De Crespigny Correspondence: Dr J. Boydell, Division of Psychological Medicine, Institute of Psychiatry, De Crespigny Park, Denmark Hill, London SE5 8AF,UK.Tel: 020 7848 026 0; e-mail: j.boydell Park, Denmark Hill, London SE5 8AF,UK.Tel: 020 7848 0260; e-mail: j.boydell@ @iop.kcl.ac.uk iop.kcl.ac.uk (First received 21 May 2001, final revision 12 August 2002, accepted 4 September 2002) (First received 21 May 2001, final revision 12 August 2002, accepted 4 September 2002) https://doi.org/10.1192/bjp.182.1.45 Published online by Cambridge University Press REFERENCES REFERENCES

Cited by

Sorted by citations

Related

Authors
Boydell, J., Van Os, J., Lambri, M., Castle, D., Allardyce, J., McCreadie, R. G., & Murray, R. M.
Affiliations
  • King's College London (GB)
  • The University of Western Australia (AU)
  • Crichton Royal Hospital (GB)
Corresponding author
Boydell, J.
ORCID
Venue
British Journal of Psychiatry
Publisher
Royal College of Psychiatrists
Published
2003-01-02
Volume
182
Issue
1
Pages
45-49
ISSN
  • 0007-1250 (ISSN-L)
  • 1472-1465
DOI
10.1192/bjp.182.1.45
OpenAlex
W2156467223
Cited by
104
References
23
Citations by year
2025: 1 · 2024: 1 · 2023: 1 · 2021: 1 · 2020: 3 · 2019: 2 · 2018: 3 · 2017: 2 · 2016: 5 · 2015: 4 · 2014: 5 · 2013: 5 · 2012: 7
FWCI
5.24
Type
journal article
Language
en
Open access
Licence
www.cambridge.org/core/terms (unspecified, 5479 d)
Locations
  • The British Journal of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Psychology › Social Psychology › Mental Health Treatment and Access
  • Social Sciences › Arts and Humanities › Philosophy › Mental Health and Psychiatry
Keywords
schizophrenia, incidence trends, young adults, age and gender differences, South East London, Camberwell, psychiatric epidemiology
MeSH terms
Adult, Analysis of Variance, Diagnosis, Computer-Assisted, Female, Humans, London, Male, Regression Analysis, Schizophrenia, Time Factors, Incidence, Age of Onset, Sex Distribution

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review