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Eur Heart J. 2009 Apr;30(7):857-65. doi: 10.1093/eurheartj/ehp037. Epub 2009 Feb 20.

The influence of body mass index on mortality and bleeding among patients with or at high-risk of atherothrombotic disease.

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  • 1Gleneagles Medical Centre, 6 Napier Road No. 08-13, Singapore.



We aimed to determine the relationship between body mass index (BMI) and cardiovascular events among individuals with or at-risk of atherothrombotic disease.


This was a prospective observational study of 15 532 patients enrolled in the Clopidogrel for High Atherothrombotic Risk and Ischemic Stabilization, Management, and Avoidance (CHARISMA) trial who were randomly assigned to clopidogrel or placebo, and followed-up for a median of 28 months for the occurrence of the primary endpoint (cardiovascular death, myocardial infarction, or stroke), all-cause mortality, and bleeding complications. Compared with the highest BMI quartile, the primary endpoint, cardiovascular, and all-cause mortality all occurred more frequently among patients in the lowest BMI quartile (about a third lower). The relationship between continuous BMI and adverse cardiovascular outcomes were presented as two linear spline terms with 29 kg/m(2) as the cut-point for all-cause mortality. Lower BMI was associated with an increase in moderate and severe bleeding complications, largely accounted for by those receiving dual-antiplatelet agents with the highest tertile aspirin dose.


Adverse cardiovascular events and bleeding complications occurred more frequently among individuals with or at-risk for atherothrombotic disease and low BMI. Further studies should be directed to these patients to improve outcomes.

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