Conditions

Waist size, not body mass index, may be more predictive of coronary artery disease

Humans love to look good and healthy but most people want to eat their cake and have it.

Literally speaking, we end up with the looks we ‘want’. The body mass index of an individual is directly affected by the volume of food we eat.

However, a study now indicates that an increasing ‘waist size’ may portend danger. Blood vessels are primarily affected in obese people, especially with those with truncal obesity.

Because Coronary Artery Disease CAD, remains the leading cause of death worldwide, there is tremendous attention given to its modifiable risk factors.

Estrogen protects women’s cardiovascular systems before menopause, which helps explain why the incidence of CAD in premenopausal women is lower than in men. However, as women’s estrogen levels decline during and after menopause, the incidence of CAD in postmenopausal women outpaces similarly aged men.

Obesity has long been known as a risk factor for CAD because it causes endothelial cell dysfunction, insulin resistance, and coronary atherosclerosis, among other problems. It also is often accompanied by other cardiovascular risk factors, such as hypertension and diabetes.

In the past, it has been suggested that overall obesity (which is often defined by BMI) is a primary risk factor.

Few studies have attempted to compare the effect of overall obesity versus central obesity, which is typically described by waist circumference and/or waist-to-hip ratio.

The results of this new study of nearly 700 Korean women, however, demonstrated that the presence of obstructive CAD was significantly higher in women with central obesity.

No significant difference was identified based on BMI, indicating that overall obesity was not a risk factor for obstructive CAD. These results are especially relevant for postmenopausal women because menopause causes a change in body fat distribution, especially in the abdominal area.

“The findings of this study are consistent with what we know about the detrimental effects of central obesity. Not all fat is the same, and central obesity is particularly dangerous because it is associated with risk for heart disease, the number one killer of women. Identifying women with excess abdominal fat, even with a normal BMI, is important so that lifestyle interventions can be implemented,” says Dr. Stephanie Faubion, NAMS medical director.

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Dr E
The Admin is a Medical and Dental Council of Nigeria Certified Medical Doctor, with profound expertise in Medical Content Creation and Medical Citizen Journalism. He is popular for being a fast-rising online voice in Nigeria, with a flair for animated writing. He is a professional health content writer. He loves to swim, read and play board games. He sees himself as one who is destined to play a role in the way health services are rendered to the human race.
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