Cited by 539Psychopathy, Forensic Psychiatry, Sexual OffendingCrime Patterns and InterventionsSchizophrenia research and treatment

The population impact of severe mental illness on violent crime

Open access
Fazel, Seena, Grann, Martin·2006·American Journal of Psychiatry

Abstract

OBJECTIVE: This study aimed to determine the population impact of patients with severe mental illness on violent crime. METHOD: Sweden possesses high-quality national registers for all hospital admissions and criminal convictions. All individuals discharged from the hospital with ICD diagnoses of schizophrenia and other psychoses (N=98,082) were linked to the crime register to determine the population-attributable risk of patients with severe mental illness to violent crime. The attributable risk was calculated by gender, three age bands (15-24, 25-39, and 40 years and over), and offense type. RESULTS: Over a 13-year period, there were 45 violent crimes committed per 1,000 inhabitants. Of these, 2.4 were attributable to patients with severe mental illness. This corresponds to a population-attributable risk fraction of 5.2%. This attributable risk fraction was higher in women than men across all age bands. In women ages 25-39, it was 14.0%, and in women over 40, it was 19.0%. The attributable risk fractions were lowest in those ages 15-24 (2.3% for male patients and 2.9% for female patients). CONCLUSIONS: The population impact of patients with severe mental illness on violent crime, estimated by calculating the population-attributable risk, varies by gender and age. Overall, the population-attributable risk fraction of patients was 5%, suggesting that patients with severe mental illness commit one in 20 violent crimes.

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 · 10.1176/ajp.2006.163.8.1397

Cites

30 of 30 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?

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: 2

  1. Rothman KJ, Greenland S: Modern Epidemiology. Philadelphia, Lippincott-Raven, 1998 22. Befolkningsstatistik i sammandrag 1960-2001. Stockholm, Sta- tistics Sweden, 2003
  2. Moran P, Walsh E, Tryer P, Burns T, Creed F, Fahy T: Impact of comorbid personality disorder on violence in psychosis. Br J Psychiatry 2003; 182:129-134

Cited by

Sorted by citations

Authors
Fazel, S., & Grann, M.
Affiliations
  • Warneford Hospital (GB)
  • Karolinska Institutet (SE)
Venue
American Journal of Psychiatry
Published
2006-08
Volume
163
Issue
8
Pages
1397-1403
ISSN
  • 0002-953X (ISSN-L)
  • 1535-7228
OpenAlex
W1833357926
Cited by
539
References
30
Citations by year
2026: 5 · 2025: 12 · 2024: 16 · 2023: 23 · 2022: 30 · 2021: 17 · 2020: 30 · 2019: 27 · 2018: 15 · 2017: 68 · 2016: 29 · 2015: 45 · 2014: 28 · 2013: 45 · 2012: 27
FWCI
24.69
Type
journal article
Language
en
Open access
Locations
  • American Journal of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Psychopathy, Forensic Psychiatry, Sexual Offending
  • Social Sciences › Sociology and Political Science › Crime Patterns and Interventions
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
Keywords
severe mental illness, violent crime, population attributable risk, schizophrenia, psychosis, hospital discharge, criminal conviction, gender differences, age differences, crime types
MeSH terms
Adolescent, Adult, Age Factors, Mental Disorders, Crime, Female, Forensic Psychiatry, Hospital Records, Humans, Male, Patient Discharge, Psychotic Disorders, Registries, Risk Factors, Schizophrenia, Schizophrenic Psychology, Sex Factors, Sweden, Violence, Cohort Studies, Age Distribution, 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