Cited by 1,271Schizophrenia research and treatmentDiabetes, Cardiovascular Risks, and LipoproteinsBipolar Disorder and Treatment

The DOI matches its Crossref record; 65 of the 65 references it cites were found in a registry or an index; none of the 19 sources its claims cite is checked for support yet.

Risk of metabolic syndrome and its components in people with schizophrenia and related psychotic disorders, bipolar disorder and major depressive disorder: a systematic review and meta‐analysis

Open access

Abstract

Metabolic syndrome (MetS) and its components are highly predictive of cardiovascular diseases. The primary aim of this systematic review and meta‐analysis was to assess the prevalence of MetS and its components in people with schizophrenia and related psychotic disorders, bipolar disorder and major depressive disorder, comparing subjects with different disorders and taking into account demographic variables and psychotropic medication use. The secondary aim was to compare the MetS prevalence in persons with any of the selected disorders versus matched general population controls. The pooled MetS prevalence in people with severe mental illness was 32.6% (95% CI: 30.8%‐34.4%; N = 198; n = 52,678). Relative risk meta‐analyses established that there was no significant difference in MetS prevalence in studies directly comparing schizophrenia versus bipolar disorder, and in those directly comparing bipolar disorder versus major depressive disorder. Only two studies directly compared people with schizophrenia and major depressive disorder, precluding meta‐analytic calculations. Older age and a higher body mass index were significant moderators in the final demographic regression model (z = −3.6, p = 0.0003, r 2 = 0.19). People treated with all individual antipsychotic medications had a significantly (p<0.001) higher MetS risk compared to antipsychotic‐naïve participants. MetS risk was significantly higher with clozapine and olanzapine (except vs. clozapine) than other antipsychotics, and significantly lower with aripiprazole than other antipsychotics (except vs. amisulpride). Compared with matched general population controls, people with severe mental illness had a significantly increased risk for MetS (RR = 1.58; 95% CI: 1.35‐1.86; p<0.001) and all its components, except for hypertension (p = 0.07). These data suggest that the risk for MetS is similarly elevated in the diagnostic subgroups of severe mental illness. Routine screening and multidisciplinary management of medical and behavioral conditions is needed in these patients. Risks of individual antipsychotics should be considered when making treatment choices.

Overview

AI snapshot

Written from the paper’s full text.

TL;DR

This systematic review and meta-analysis found that metabolic syndrome (MetS) affects about one third of people with severe mental illness and is elevated versus matched general population controls. Risk was similar across schizophrenia, bipolar disorder, and major depressive disorder, but differed by age, body mass index, and individual antipsychotic medication.

Key findings

  • Pooled MetS prevalence in people with severe mental illness was 32.6% (95% CI: 30.8%–34.4%; N=198; n=52,678), and compared with matched general population controls the relative risk was 1.58 (95% CI: 1.35–1.86; p<0.001).
  • MetS prevalence did not differ significantly in direct comparisons of schizophrenia versus bipolar disorder (RR=0.92, 95% CI: 0.79–1.06; p=0.24) or bipolar disorder versus major depressive disorder (RR=0.87, 95% CI: 0.48–1.55; p=0.64); only two studies directly compared schizophrenia and major depressive disorder, precluding meta-analysis.
  • Older age and higher body mass index were significant moderators in the final demographic regression model (z=23.6, p=0.0003, r²=0.19).
  • Among antipsychotics, MetS prevalence was lowest for aripiprazole (19.4%, 95% CI: 8.0%–34.2%) and highest for clozapine (47.2%, 95% CI: 42.0%–52.6%); antipsychotic-naïve participants had 10.2% (95% CI: 6.8%–14.3%). Compared with controls, risk was increased for all MetS components except hypertension, which showed a statistical trend (RR=1.12, 95% CI: 0.99–1.28; p=0.07).

Methods

  • Systematic review and meta-analysis conducted according to MOOSE and PRISMA, searching MEDLINE, PsycARTICLES, EMBASE, and CINAHL from database inception to January 1, 2015.
  • Included observational studies in adults with DSM-IV/ICD-10 diagnoses of schizophrenia or related psychotic disorders, bipolar disorder, or major depressive disorder, and MetS defined by non-modified ATP-III, ATP-III-A, IDF, or WHO criteria; 198 studies with 52,678 unique persons with severe mental illness were included.
  • Pooled prevalence used the DerSimonian-Laird random-effects proportion method; relative risks were calculated for MetS and its components within and across diagnostic subgroups and versus matched general population controls, with meta-regression for moderators.

Limitations

  • The paper states considerable methodological heterogeneity across studies; cross-sectional data meant directionality of medication–metabolic associations could not be deduced with certainty; clinical subtypes and concomitant or previous antidepressant/mood stabilizer use were often insufficiently reported or controlled; publication bias and heterogeneity were encountered, though main findings were robust after trim-and-fill adjustment; and inadequate data on ethnicity and lifestyle behaviors precluded meta-analytic assessment of these factors.
  • Evident from the text: there were no data in first-episode bipolar disorder or major depressive disorder patients, precluding comparison with multi-episode patients, and only two studies directly compared schizophrenia and major depressive disorder.
  • Evident from the text: illness duration was a significant predictor in separate meta-regression but not in the final model, which the authors note may be due to limited data available for illness duration compared with age.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1002/wps.20252

Cites

65 of 65 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Verification

Claims the paper makes

0 of 19 cited sources checked · 0 supported · 0 flagged

Show all 71 claims

  • It may state two separate claims as one. 13
  • The quote only partly states this claim. 2
  • Probably not a substantial claim. 13
24 of 24

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.

Each contradiction between two passages listed here was confirmed by an independent check.

  • Multi-episode schizophrenia has more studies than schizophrenia overall

    Minor

    The paper reports 93 studies of schizophrenia overall but 105 studies of multi-episode schizophrenia, although the latter is a subgroup of the former. Both figures are also assigned the same participant total of 29,596.

1 of 1

Citations

Cites

Flagged first, then by citations

Show all 65 references

Research works printed but not linked: 2

  1. World Health Organization, 1999, Definition, diagnosis and classification of diabetes mellitus and its complications. Part 1: diagnosis and classification of diabetes mellitus
  2. Duvall S, 2000, A non‐parametric ‘trim and fill’ method for assessing publication bias in meta‐analysis, J Am Stat Assoc, 95, 89

Cited by

Sorted by citations

Items 701–800 of 1,000

Metadata

Authors
Vancampfort, D., Stubbs, B., Mitchell, A. J., De Hert, M., Wampers, M., Ward, P. B., Rosenbaum, S., & Correll, C. U.
Affiliations
  • KU Leuven (BE)
  • University of Greenwich (GB)
  • University of Leicester (GB)
  • UPC KU Leuven, Campus Kortenberg, Department of Neurosciences, KU Leuven ‐ University of Leuven Kortenberg Belgium
  • UNSW Sydney (AU)
  • Hofstra University (US)
Venue
World Psychiatry
Publisher
Wiley
Published
2015-09-25
Volume
14
Issue
3
Pages
339-347
ISSN
  • 1723-8617 (ISSN-L)
  • 2051-5545
OpenAlex
W2150458484
Cited by
1,271
References
65
Citations by year
2026: 120 · 2025: 142 · 2024: 122 · 2023: 101 · 2022: 117 · 2021: 138 · 2020: 132 · 2019: 101 · 2018: 131 · 2017: 96 · 2016: 65 · 2015: 4
FWCI
13.57
Type
journal article
Language
en
Open access
Locations
  • World Psychiatry (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (publishedVersion, other-oa)
  • Lirias (KU Leuven) (submittedVersion, other-oa)
  • Lirias (KU Leuven) (submittedVersion)
Funders
  • Yale University
  • University of Pittsburgh
  • University of Rochester
  • Postgraduate Institute of Medical Education and Research, Chandigarh
  • Newcastle University
  • Rijksuniversiteit Groningen
  • Universiteit Utrecht
  • Vrije Universiteit Amsterdam
  • University of Toronto
  • Kuopion Yliopistollinen Sairaala
  • Taipei Medical University
  • University of California, San Diego
  • Medical Center, University of Rochester
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
Keywords
metabolic syndrome, schizophrenia, bipolar disorder, major depressive disorder, psychosis, severe mental illness, antipsychotic drugs, clozapine, olanzapine, aripiprazole, body mass index, cardiovascular risk, hypertension, metabolic syndrome prevalence

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.

A language model drew the claims from the paper on 2026-10-10, under version 3 of the claim definition (model deepseek-v4.1-flash, prompt extract-v3).

A second model labelled each claim on 2026-10-10 (model jev-1.13-20260917, definition revision gold-guideline-v0.2).

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