Waist-to-height ratio (WtHR)
Waist-to-height ratio (WtHR) is tool that might predict the risk of heart disease, diabetes, and overall mortality more effectively than BMI.A person whose waist measurement is less than half their height has a lower risk of a number of life-threatening health complications.
Measure your waist-to-height ratio:
A person's height
A person's height should be at least twice their waist measurement for a healthy WtHR.
To calculate the WtHR, a person should divide their waist size by their height. If the answer is 0.5 or less, the chances are that they have a healthy weight.
A woman who is 5 feet and 4 inches tall (163 cm), should have a waist measurement below 32 inches (81 cm).
A man who is 6 feet or 183 centimeters (cm) tall, should have a waist measurement below 36 inches or 91 cm.
These measurements will give a WtHR of just under 0.5.
In a study published in 2014 in Plos One, researchers concluded that WtHR was a better predictor of mortality than BMI.
The authors also cited findings from another study — involving statistics for around 300,000 people from different ethnic groups — which concluded that WHtR is better than BMI at predicting heart attacks, strokes, diabetes, and hypertension.
This suggests that the WHtR could be a useful screening tool.
Measurements that take waist size into account can be good indicators of a person's health risks because fat that collects around the middle can be harmful for the heart, kidneys, and liver.
The Centers for Disease Control and Prevention (CDC) note that a man with a waist size of 40 inches or above, or a woman with a waist size of 35 inches or above has a higher risk than other people of:
type 2 diabetes
high blood pressure
coronary artery disease
This does not, however, take a person's height or hip size into consideration.
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