Cited by 80Diabetes, Cardiovascular Risks, and LipoproteinsDiabetes Management and ResearchDiabetes Treatment and Management

Frequency of undiagnosed diabetes mellitus in patients with acute coronary syndrome

Open access
Conaway, Darcy Green, O’Keefe, James H., Reid, Kimberly J., Spertus, John·2005·The American Journal of Cardiology

Abstract

In a prospective cohort of patients who had acute coronary syndrome, we used a simple fasting plasma glucose to identify previously unrecognized diabetes mellitus. A total of 57% of patients who had acute coronary syndrome had abnormal glucose metabolism; approximately 66% of those who met criteria for new diabetes were not diagnosed or treated as such by the physicians who managed them.

Integrity signals

Registry

Crossref · 10.1016/j.amjcard.2005.03.076

Cites

7 of 7 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 4 cited sources checked · 0 supported · 0 flagged

  • Findingown data
    § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome

    Of the 126 patients meeting criteria for new-onset diabetes mellitus, 44 (35%) were diagnosed with new-onset diabetes mellitus at discharge.

    “As shown in Figure 3, only 44 of these patients (35%) were diagnosed as having new-onset DM on discharge.”
    • Also stated in: § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome · plain
      “Of 126 patients who presented with ACS and met the criteria for new DM with a high FPG level, 44 of 126 (35%) were recognized as having DM by physicians.”
    Quote in the paperSubstantial claim
  • Findingown data
    § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome

    Of the 1,199 acute coronary syndrome patients, 321 (27%) had known diabetes mellitus on admission.

    “Of these, 321 (27% of 1,199) were previously diagnosed with DM and thus were excluded from further analysis.”
    • Also stated in: § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome · plain
      “Among 1,199 patients who presented with ACS, 321 (27%) had known DM on admission.”
    Quote in the paperSubstantial claim
  • Findingown data
    § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome

    Of the 126 patients meeting criteria for new-onset diabetes mellitus, 82 (65%) were not recognized as having diabetes mellitus by the treating team and remained undiagnosed at discharge.

    “The remaining 82 patients (65%) who met criteria for a new diagnosis of DM were not recognized by the team that provided care for patients' ACS.”
    • Also stated in: § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome · plain
      “In the remaining 82 (65%), DM remained undiagnosed on hospital discharge.”
    Quote in the paperSubstantial claim
  • Findingown data
    § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome

    Lack of previous angina was associated with recognition of diabetes mellitus (18.2% recognized vs 39.0% unrecognized, p = 0.017).

    “and a lack of previous angina (18.2% for recognized vs 39.0% for unrecognized, p ϭ 0.017).”
    Quote in the paperNot a substantial claim
  • Findingown data
    § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome

    Among 1,199 patients presenting with acute coronary syndrome, 57% (699) had abnormal glucose metabolism.

    “A total of 57% of patients who had acute coronary syndrome had abnormal glucose metabolism”
    • Also stated in: § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome · plain
      “Among the 1,199 patients who had ACS, most (57%) presented with abnormal glucose metabolism (Figure 1).”
    • Also stated in: § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome · plain
      “Most patients (699 of 1,199, 57%) who presented with ACS had an abnormal metabolism, which was defined as a diagnosis of DM on admission (n ϭ 321, 27%), a new diagnosis of DM (n ϭ 126, 14%), or impaired fasting glucose metabolism (n ϭ 252, 29%).”
    Quote in the paperSubstantial claim
  • May combine two claims. 4
  • Classified as probably not a substantial claim. 5
  • The quote only partly states this claim. 1
  • May combine two claims.

    Findingown data
    § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome

    Among the 878 patients without prior diabetes, 252 (29%) met criteria for impaired fasting glucose, and none of them received that diagnosis.

    “Importantly, we found a substantial number of patients who had high FPG levels (252 of 878, 29%), thus qualifying them for a diagnosis of impaired fasting glucose level.None of these patients received such a diagnosis (Figure 2).”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Study design and conductnone given
    § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome

    Three physicians reviewed the charts of all patients with remaining diagnostic uncertainty and reached consensus on the final diagnosis.

    “Three physicians reviewed the charts of all patients for whom diagnostic uncertainty remained and attained consensus on the final diagnosis.”
    Quote in the paperNot a substantial claim
  • The quote only partly states this claim.

    Interpretationreasoning
    § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome

    Grouping the 278 patients without available fasting plasma glucose values together with those having normal glucose metabolism under-represented patients with abnormal glucose metabolism.

    “We included these patients with those who had”
    Quote in the paperSubstantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation
    § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome

    A recent study suggested that most patients newly diagnosed with diabetes mellitus during hospitalization for acute coronary syndrome continue to have increased glucose levels after 3 months.

    “a recent study has suggested that most patients who have DM that is newly diagnosed during hospitalization for ACS continue to have increased glucose levels after 3 months.5”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [5] Tenerz, 2003, Diabetes, insulin resistance, and the metabolic syndrome in patients with acute myocardial infarction without previously known diabetes, Diabetes Care source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S2 (checkable).

    Premisecitation
    § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome

    Diabetes mellitus is regarded by many as a coronary atherosclerotic disease equivalent.

    “Because DM is considered by many to be a coronary atherosclerotic disease equivalent, 1”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [1] 2001, Executive summary of the 3rd report of the National Cholesterol Expert Panel on detection, evaluation, and treatment of elevated blood cholesterol in adults (ATPIII), JAMA source

      Not checked in the free run.

  • May combine two claims.

    Interpretationcitation
    § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome

    This study confirms earlier trials indicating that diabetes mellitus is often unrecognized and uncontrolled in patients presenting with acute myocardial infarction.

    “This study confirms previous trials that suggested that DM is often unrecognized and uncontrolled in patients who present with an acute myocardial infarction.4”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [4] Norhammar, 2002, Glucose metabolism in patients with acute myocardial infarction and no previous diagnosis of diabetes mellitus, Lancet source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation
    § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome

    Patients with diabetes mellitus or the metabolic syndrome are at markedly higher risk for recurrent cardiovascular events after acute coronary syndrome.

    “Patients who have DM or the metabolic syndrome are at markedly higher risk for recurrent cardiovascular events after ACS. 5”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [5] Tenerz, 2003, Diabetes, insulin resistance, and the metabolic syndrome in patients with acute myocardial infarction without previously known diabetes, Diabetes Care source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Study design and conductown data
    § Frequency of Undiagnosed Diabetes Mellitus in Patients With Acute Coronary Syndrome

    Institutional review board approval from both institutions was obtained before the study, and each participant signed informed consent for the interviews and chart abstractions.

    “Approval from the institutional review boards of the 2 institutions was obtained before conducting the study, and an informed consent to participate in the interviews and chart abstractions was signed by each participant.”
    Quote in the paperNot a substantial claim
8 of 8
  • The paper relies on this without support.

    No prior study had described practice patterns in evaluating high-risk patients with acute coronary syndrome for the diagnosis of diabetes mellitus.

    “To date, no study has described practice patterns in evaluating high-risk patients who have acute coronary syndrome (ACS) for the diagnosis of diabetes mellitus (DM).”
1 of 1

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?

  • About one-third of American adults and two-thirds of coronary artery disease patients have abnormal glucose homeostasis.

    “Recent studies indicate that about one-third of American adults and two-thirds of CAD patients have abnormal glucose homeostasis (6,7).”

    From Dietary Strategies for Improving Post-Prandial Glucose, Lipids, Inflammation, and Cardiovascular Health (2008) · cites this paper as [6]

    The results (Figure 1; page unavailable) report abnormal glucose metabolism in 57% of patients presenting with acute coronary syndrome, which supports a high prevalence in that group but not the stated two-thirds of CAD patients generally. The discussion also reports roughly two-thirds in another acute-coronary cohort. Our copy provides no estimate for American adults. (LLM, conf=0.87)

    Experimental — accuracy not yet measured

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.

  • Abnormal glucose prevalence is misstated

    Major

    The reported count is 58.3% of the cohort, not 57%. This affects the paper's headline prevalence result.

    Reported 57 · recomputed 58.298582

  • Impaired fasting glucose diagnoses are reported both as given and absent

    Minor

    The results say none of the 252 patients received an impaired fasting glucose diagnosis, whereas the Figure 2 caption says all 252 received a new diagnosis.

  • Primary outcome formula counts recognized cases instead

    Minor

    The stated formula uses newly recognized cases as its numerator, yielding the recognized proportion. The results identify the unrecognized proportion as the remaining 82 of 126 patients.

3 of 3

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Authors
Conaway, D. G., O’Keefe, J. H., Reid, K. J., & Spertus, J.
Affiliations
  • Truman Medical Center (US)
  • Saint Luke's Hospital (US)
Corresponding author
Conaway, Darcy Green
Venue
The American Journal of Cardiology
Publisher
Elsevier BV
Published
2005-08
Volume
96
Issue
3
Pages
363-365
ISSN
0002-9149 (ISSN-L)
OpenAlex
W2076291204
Cited by
80
References
7
Citations by year
2025: 1 · 2022: 6 · 2021: 2 · 2020: 1 · 2019: 1 · 2018: 5 · 2017: 1 · 2016: 7 · 2015: 8 · 2014: 7 · 2013: 6 · 2012: 2
FWCI
4.14
Type
journal article
Language
en
Open access
Locations
  • The American Journal of Cardiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Agency for Healthcare Research and Quality (R-01 HS11282-01)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
Keywords
undiagnosed diabetes, acute coronary syndrome, fasting blood glucose, abnormal glucose metabolism, diabetes diagnosis, underdiagnosis, coronary artery disease
MeSH terms
Angina, Unstable, Blood Glucose, Diabetes Mellitus, Female, Humans, Male, Missouri, Myocardial Infarction, Prospective Studies, Prevalence, Chi-Square Distribution

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