The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.
Impaired Fasting Glucose Tolerance in First-Episode, Drug-Naive Patients With Schizophrenia
Abstract
OBJECTIVE: This study examined the prevalence of impaired fasting glucose tolerance in first-episode, drug-naive patients with schizophrenia. METHOD: In this cross-sectional study, fasting plasma levels of glucose, insulin, lipids, and cortisol were measured in 15 male and 11 female hospitalized Caucasian patients with DSM-IV schizophrenia (mean age=33.6 years) and age- and sex-matched healthy comparison subjects. The patients and comparison subjects were also matched in terms of various life-style and anthropometric measures. RESULTS: More than 15% of the drug-naive, first-episode patients with schizophrenia had impaired fasting glucose tolerance, compared to none of the healthy volunteers. Compared with the healthy subjects, the patients with schizophrenia had significantly higher fasting plasma levels of glucose (mean=88.2 mg/dl, SD=5.4, for the healthy subjects versus mean=95.8 mg/dl, SD=16.9, for the patients), insulin (mean=7.7 micro u/ml, SD=3.7, versus mean=9.8 micro u/ml, SD=3.9), and cortisol (mean=303.2 nmol/liter, SD=10.5, versus mean=499.4 nmol/liter, SD=161.4) and were more insulin resistant, as measured with homeostasis model assessment (mean=1.7, SD=0.7, for the healthy subjects versus mean=2.3, SD=1.0, for the patients). CONCLUSIONS: First-episode, drug-naive patients with schizophrenia have impaired fasting glucose tolerance and are more insulin resistant and have higher levels of plasma glucose, insulin, and cortisol than healthy comparison subjects.
Overview
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.
Integrity signals
Registry
Cites
Statistics
Verification
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.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Matthews, D. R., Hosker, J. P., Rudenski, A. S., Naylor, B. A., Treacher, D. F., & Turner, R. C. (1985) · Diabetologia · doi:10.1007/bf00280883 · Cited by 31,502
The Brief Psychiatric Rating Scale.
Overall, J. E., & Gorham, D. R. (1962) · Psychological Reports · doi:10.2466/pr0.1962.10.3.799 · Cited by 11,090
Lillioja, S., Mott, D. M., Spraul, M., Ferraro, R., Foley, J. E., Ravussin, E., Knowler, W. C., Bennett, P. H., & Bogardus, C. (1993) · New England Journal of Medicine · doi:10.1056/nejm199312303292703 · Cited by 1,508
Effect of dietary fatty acids on serum lipids and lipoproteins. A meta-analysis of 27 trials
Mensink, R. P., & Katan, M. B. (1992) · Arteriosclerosis and Thrombosis: A Journal of Vascular Biology · doi:10.1161/01.atv.12.8.911 · Cited by 1,477
Dietary Fiber, Glycemic Load, and Risk of NIDDM in Men
Salmerón, J., Ascherio, A., Rimm, E. B., Colditz, G. A., Spiegelman, D., Jenkins, D. J., Stampfer, M. J., Wing, A. L., & Willett, W. C. (1997) · Diabetes Care · doi:10.2337/diacare.20.4.545 · Cited by 1,426
Warram, J. H., Martin, B. C., Krolewski, A. S., Soeldner, J. S., & Kahn, C. R. (1990) · Annals of Internal Medicine · doi:10.7326/0003-4819-113-12-909 · Cited by 1,038
Global Estimates for Prevalence of Diabetes Mellitus and Impaired Glucose Tolerance in Adults
King, H., Rewers, M., & Who Ad Hoc Diabetes Reporting Group (1993) · Diabetes Care · doi:10.2337/diacare.16.1.157 · Cited by 886
Excess mortality of schizophrenia: A meta-analysis
Brown, S. (1997) · British Journal of Psychiatry · doi:10.1192/bjp.171.6.502 · Cited by 869
Dietary fat intake and risk of type 2 diabetes in women
Salmerón, J., Hu, F. B., Manson, J. E., Stampfer, M. J., Colditz, G. A., Rimm, E. B., & Willett, W. C. (2001) · The American Journal of Clinical Nutrition · doi:10.1093/ajcn/73.6.1019 · Cited by 818
Kaneko, M., Yokoyama, F., Hoshino, Y., Takahagi, K., Murata, S., Watanabe, M., & Kumashiro, H. (2008) · Neuropsychobiology · doi:10.1159/000118800 · Cited by 70
Cited by
Consensus development conference on antipsychotic drugs and obesity and diabetes
American Diabetes Association, American Psychiatric Association, American Association of Clinical Endocrinologists, & North American Association for the Study of Obesity (2004) · Diabetes Care · doi:10.2337/diacare.27.2.596 · Cited by 1,554
Mitchell, A. J., Vancampfort, D., Sweers, K., van Winkel, R., Yu, W., & De Hert, M. (2013) · Schizophrenia Bulletin · doi:10.1093/schbul/sbr148 · Cited by 1,082
Depression as a risk factor for the onset of type 2 diabetes mellitus. A meta-analysis
Knol, M. J., Twisk, J. W. R., Beekman, A. T. F., Heine, R. J., Snoek, F. J., & Pouwer, F. (2006) · Diabetologia · doi:10.1007/s00125-006-0159-x · Cited by 974
DE HERT, M., COHEN, D., BOBES, J., CETKOVICH‐BAKMAS, M., LEUCHT, S., NDETEI, D. M., NEWCOMER, J. W., UWAKWE, R., ASAI, I., MÖLLER, H., et al. (2011) · World Psychiatry · doi:10.1002/j.2051-5545.2011.tb00036.x · Cited by 870
(2007) · Endocrine Practice · doi:10.4158/ep.13.s1.1 · Cited by 699
Metadata
- Authors
- Ryan, M. C. M., Collins, P., & Thakore, J. H.
- Venue
- American Journal of Psychiatry
- Published
- 2003-02-01
- Volume
- 160
- Issue
- 2
- Pages
- 284-289
- ISSN
- 0002-953X (ISSN-L)
- 1535-7228
- OpenAlex
- W2149173020
- Cited by
- 828
- References
- 10
- FWCI
- 30.37
- Type
- journal article
- Language
- en
- Open access
- closed
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
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Impaired Fasting Glucose Tolerance in First-Episode, Drug-Naive Patients With Schizophrenia. https://app.cochat.ai/papers/10.1176/appi.ajp.160.2.284
- The paper
- Ryan, M. C. M., Collins, P., & Thakore, J. H. (2003). Impaired Fasting Glucose Tolerance in First-Episode, Drug-Naive Patients With Schizophrenia. American Journal of Psychiatry. https://doi.org/10.1176/appi.ajp.160.2.284
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
