Cited by 569Diabetes, Cardiovascular Risks, and LipoproteinsDiabetes Treatment and ManagementDiabetes Management and Research

The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index; none of the 45 sources its claims cite is checked for support yet.

Postprandial Blood Glucose Is a Stronger Predictor of Cardiovascular Events Than Fasting Blood Glucose in Type 2 Diabetes Mellitus, Particularly in Women: Lessons from the San Luigi Gonzaga Diabetes Study

Cavalot, F., Petrelli, A., Traversa, M., Bonomo, K., Fiora, E., Conti, M., Anfossi, G., Costa, G., Trovati, M.·2006·The Journal of Clinical Endocrinology & Metabolism

Abstract

OBJECTIVE: The influence of postprandial blood glucose on diabetes complications is intensively debated. We aimed to evaluate the predictive role of both fasting and postprandial blood glucose on cardiovascular events in type 2 diabetes and the influence of gender. METHODS: In a population of 529 (284 men and 245 women) consecutive type 2 diabetic patients attending our diabetes clinic, we evaluated the relationships, corrected for cardiovascular risk factors and type of treatment, between cardiovascular events in a 5-yr follow-up and baseline values of hemoglobin A1c (HbA1c) and blood glucose measured: 1) after an overnight fast, 2) after breakfast, 3) after lunch, and 4) before dinner. Continuous variables were categorized into tertiles. RESULTS: We recorded cardiovascular events in 77 subjects: 54 of 284 men (19%) and 23 of 245 women (9.4%). Univariate analysis indicated that cardiovascular events were associated with increasing age, longer diabetes duration, and higher HbA1c and fibrinogen in men, and higher systolic blood pressure, albumin excretion rate, HbA1c, and all blood glucose values in women. Smoking was more frequent in subjects with events. When all blood glucose values and HbA1c were introduced simultaneously in the models, only blood glucose after lunch predicted cardiovascular events, with hazard ratio of the third tertile vs. the first and the second tertiles greater in women (5.54; confidence interval, 1.45-21.20) than in men (2.12; confidence interval, 1.04-4.32; P < 0.01). CONCLUSIONS: Postprandial, but not fasting, blood glucose is an independent risk factor for cardiovascular events in type 2 diabetes, with a stronger predictive power in women than in men, suggesting that more attention should be paid to postprandial hyperglycemia, particularly in women.

Overview

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Written from the paper’s full text.

TL;DR

In a 5-year follow-up of 529 type 2 diabetes patients, blood glucose measured after lunch independently predicted cardiovascular events, whereas fasting glucose did not. The predictive effect was stronger in women than in men.

Key findings

  • Cardiovascular events occurred in 77 participants: 54 of 284 men (19%) and 23 of 245 women (9.4%).
  • When all glucose measurements and HbA1c were included together, only post-lunch blood glucose remained a significant predictor of cardiovascular events.
  • The hazard ratio for the third tertile versus the first and second tertiles of post-lunch glucose was 5.54 (95% CI, 1.45–21.20) in women and 2.12 (95% CI, 1.04–4.32) in men; the gender difference was statistically significant (P < 0.01).
  • HbA1c correlated with all measured glucose values in both genders, but fasting glucose had low predictive value for events.

Methods

  • Prospective cohort study of 529 consecutive type 2 diabetes patients at an Italian diabetes clinic, enrolled in 1995 and followed through 2000.
  • Baseline assessment included cardiovascular risk factors, HbA1c, and glucose profiles: fasting, 2 hours after breakfast, 2 hours after lunch, and before dinner.
  • Cox proportional hazards models were fitted separately by gender, with glucose and HbA1c values categorized into tertiles and adjusted for age, diabetes duration, previous cardiovascular events, systolic blood pressure, albumin excretion rate, fibrinogen, smoking, and type of treatment.

Limitations

  • The paper states that a possible limitation is the limited number of cardiovascular events in women.
  • The text makes evident that glucose before lunch was unavailable for most patients, so lunch-induced glucose excursions could not be evaluated across the whole cohort.
  • Glucose profiles were measured either in hospital by nurses or at home by patients using a reflectance meter, which may introduce measurement variability.

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Integrity signals

Registry

Crossref · 10.1210/jc.2005-1005

Cites

34 of 34 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Verification

Claims the paper makes

0 of 45 cited sources checked · 0 supported · 0 flagged

Show all 28 claims

  • It may state two separate claims as one. 19
  • Probably not a substantial claim. 27
41 of 41
  • The paper relies on this without support.

    No prior study has examined whether sex affects the predictive value of postprandial glucose in patients with established type 2 diabetes.

    “As far as we know, no study addressed the influence of gender in the predictive power of postprandial (not postchallenge) BG in patients with an established diagnosis of type 2 diabetes.”
  • The paper relies on this without support.

    The blood glucose profiles used at baseline reflect the patients' usual glycemic control.

    “To get BG values truly reflecting the real glycemic control, we considered BG profiles available for clinical purposes at the routine visit in which the cardiovascular risk factors and HbA1c were measured”
  • The paper relies on this without support.

    Record linkage with hospital discharge and population registers accurately identifies cardiovascular events and deaths.

    “An individual record linkage with the hospital discharge database of the Piedmont region ( ∼ 4,200,000 inhabitants), the region in northwest Italy that includes Turin (the capital, with about 1,000,000 inhabitants), was conducted”
    “An individual record linkage using the individual fiscal code as the key linkage was conducted with the Turin historical population register”
  • The paper relies on this without support.

    The clinic-based cohort is representative of patients with type 2 diabetes generally.

    “In a population of 529 (284 men and 245 women) consecutive type 2 diabetic patients attending our diabetes clinic”
  • The paper relies on this without support.

    In Piedmont, breakfast is frequently a virtual meal consisting only of a cup of coffee and sometimes a small piece of bread.

    “Actually, breakfast in the Piedmont is frequently a virtual meal, consisting only of a cup of coffee with, sometimes, a small piece of bread.”
  • The paper relies on this without support.

    Hypoglycemic drugs are usually given in the morning.

    “because hypoglycemic drugs are usually given in the morning”
  • The paper relies on this without support.

    The differences between blood glucose after lunch and after breakfast underestimate the after-lunch glycemic increases.

    “(which underestimate the after lunch glycemic increases)”
7 of 7

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Citations

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Research works printed but not linked: 1

  1. [29]29. Cochran WG and Cox GM 1950 Experimental designs. New York: Wiley & Sons

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Metadata

Authors
Cavalot, F., Petrelli, A., Traversa, M., Bonomo, K., Fiora, E., Conti, M., Anfossi, G., Costa, G., & Trovati, M.
Affiliations
  • Ospedale San Luigi Gonzaga (IT)
  • University of Turin (IT)
Corresponding author
Trovati, M.
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
2006-03
Volume
91
Issue
3
Pages
813-819
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W1967633321
Cited by
569
References
34
Citations by year
2026: 7 · 2025: 12 · 2024: 16 · 2023: 26 · 2022: 22 · 2021: 22 · 2020: 34 · 2019: 27 · 2018: 31 · 2017: 33 · 2016: 37 · 2015: 35 · 2014: 37 · 2013: 27 · 2012: 40
FWCI
21.15
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Research Information System University of Turin (University of Turin) (submittedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
Keywords
postprandial blood glucose, fasting blood glucose, type 2 diabetes, cardiovascular events, cardiovascular risk prediction, sex differences, postprandial hyperglycemia, HbA1c
MeSH terms
Aged, Blood Glucose, Blood Pressure, Cardiovascular Diseases, Diabetes Mellitus, Type 2, Diabetic Angiopathies, Fasting, Female, Humans, Male, Middle Aged, Predictive Value of Tests, Sex Characteristics, Biomarkers, Body Mass Index, Postprandial Period

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