What to expect:
Obesity and cardiovascular disease (CVD) morbidity and mortality
Large population and observational studies have shown that obesity and cardiovascular disease (CVD) are closely associated.1,2 Conditions such as congestive heart failure, ischaemic heart disease, myocardial infarction and stroke are more prevalent in individuals living with obesity and the lifetime risk for incident cardiovascular disease increases exponentially in both men and women with higher body mass index (BMI).3 Moreover, most deaths associated with high BMI are caused by CVD.4
Obesity and cardiovascular disease: prevalence of complications
The prevalence of CVD comorbidities is higher in patients with obesity, as a detailed population health survey of 200,000 people established.3 The 2005–2012 National Health and Nutrition Examination Survey (NHANES) compared 100,000 people with obesity (BMI≤30 kg/m2–≥40 kg/m2) with 100,000 people of normal weight (BMI<25 kg/m2). It found that, compared with adults of normal weight, 51% of adults with obesity had hypertension, 8% had ischaemic heart disease, 3.5% had congestive heart failure, 3% stroke and 21% had had a myocardial infarction.3
Lifetime risk for CVD and BMI
Over a person’s lifetime, the risk for CVD morbidity, disability and death increases as the individual gains more weight, a phenomenon seen in both men and women.2
Compared to people without overweight or obesity, risks of heart attack, stroke or other cardiac events are found to be two and a half times as high for women and almost three times as high for men in the higher BMI categories (>40kg/m2).2 Even individuals whose BMI puts them into the category only of having overweight (BMI >25kg/m2) face a significantly higher risk of developing CVD at an earlier age, resulting in a greater proportion of their lives lived with cardiovascular morbidity and disability.2
CVD mortality and BMI
Such are the risks of CVD for people with high BMI that cardiovascular disease contributes to the majority of deaths associated with high BMI, according to a study of 68.5 million people in 195 countries conducted by the ongoing Global Burden of Disease Study, over 25 years.4 The study showed that of almost 4 million deaths related to a high BMI in 2015, more than two-thirds were caused by cardiovascular diseases.4
More than two thirds (68.5%) of deaths related to high BMI were due
Click here to learn more about other complications related to obesity and the link between obesity, BMI and risk of mortality.
Global Burden of Disease researchers are calling for surveillance of BMI and use of evidence-based interventions to address the problem.4
For more information on weight loss and cardiovascular benefits, click here.
- Burke GL, Bertoni A, Shea S, et al. The impact of obesity on cardiovascular disease risk factors and subclinical vascular disease. Arch Intern Med. 2008;168:928–35.
- Khan S, Ning H, Wilkins J, et al. Association of body mass index with lifetime risk of cardiovascular disease and compression of morbidity. JAMA Cardiol 2018;3(4):280–7.
- Su W, Huang J, Chen F, et al. Modeling the clinical and economic implications of obesity using microsimulation. J Med Econ. 2015;18(11):886–97.
- GBD 2015 Obesity Collaborators. Health effects of overweight and obesity in 195 countries over 25 years. N Engl J Med. 2017;377:13-27.
HQ22OB00282, Approval date: January 2023
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