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Fat mass index linked to heart disease in diabetics
Toronto, Sep 23 - Fat mass index, not body mass index (BMI), is linked to a higher risk of cardiovascular events in people with diabetes, says a study.
Heart disease is a major cause of death worldwide, and obesity is a major risk factor. Body mass index, a common measure of obesity, has been recently shown to be an imperfect metric because it does not distinguish between lean muscle mass and fat mass.
When issues related to obesity are studied, suitable metrics that describe obesity accurately are extremely important.
For the study, the researchers analysed data on 10,251 adults from the ACCORD study, a randomized controlled trial in the US looking at diabetes and cardiovascular disease (CVD).
The mean age was almost 63 years, and 62 per cent of participants were men.
The research, published in CMAJ (Canadian Medical Association Journal), showed that people with Type-2 diabetes and higher fat mass were at increased risk of major cardiovascular events compared to people with lower fat mass.
In contrast to the previous research, the protective role of lean body mass was not observed in the research population with Type-2 diabetes as a whole.
"We found that the protective effect of lean body mass was observed in participants with a lean BMI of less than 16.7 kg/m2," said Xinqun Hu, Departments of Cardiovascular Medicine and Emergency Medicine, The Second Xiangya Hospital of Central South University in Changsha, Hunan, China.
"The increased risk of cardiovascular disease in (type 2 diabetes mellitis) patients with lower BMI may be attributed to the adverse effect of lower lean body mass that overrides the positive effect of lower fat mass."
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