Dysglycaemia and the risk of acute myocardial infarction in multiple ethnic groups: an analysis of 15,780 patients from the INTERHEART study

H. C. Gerstein, S. Islam, S. Anand, W. Almahmeed, A. Damasceno, A. Dans, Chim Lang, M. A. Luna, M. McQueen, S. Rangarajan, A. Rosengren, X. Wang, S. Yusuf

    Research output: Contribution to journalArticlepeer-review

    52 Citations (Scopus)


    Aims/hypothesis Although diabetes is an established risk factor for myocardial infarction (MI), disease control may vary. HbA(1c) is a reliable index of ambient glucose levels and may provide more information on MI risk than diabetes status.

    Methods The relationship between HbA(1c) levels in MI patients and controls who participated in the 52 country INTERHEART study was analysed.

    Results In 15,780 participants with a HbA(1c) value (1,993 of whom had diabetes), the mean (SD) levels for HbA(1c) were 6.15% (1.10) in the 6,761 MI patients and 5.85% (0.80) in the control participants. After adjustment for age, sex and nine major MI risk factors (including diabetes), higher HbA(1c) fifths above the lowest fifth (HbA(1c) <5.4%) were associated with progressively higher OR of MI, with OR for the highest HbA(1c) fifth (>= 6.12%) being 1.55 (95% CI 1.37-1.75). When analysed as a continuous variable after adjustment for the same factors, every 1% higher HbA(1c) value was associated with 19% (95% CI 14-23) higher odds of MI, while every 0.5% higher HbA(1c) was associated with 9% higher odds of MI (95% CI 7-11). Concordant relationships were noted across subgroups, with a higher OR noted in younger people, patients without diabetes or hypertension, and those from some regions and ethnicities.

    Conclusions/interpretation The HbA(1c) value provides more information on MI odds than self-reported diabetes status or many other established risk factors. Every 1% increment independently predicts a 19% higher odds of MI after accounting for other MI risk factors including diabetes.

    Original languageEnglish
    Pages (from-to)2509-2517
    Number of pages9
    Issue number12
    Publication statusPublished - 2010


    • Case-control
    • Diabetes
    • Dysglycaemia
    • Glycated haemoglobin
    • Myocardial infarction
    • 52 COUNTRIES


    Dive into the research topics of 'Dysglycaemia and the risk of acute myocardial infarction in multiple ethnic groups: an analysis of 15,780 patients from the INTERHEART study'. Together they form a unique fingerprint.

    Cite this