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Obesity is based on the body mass index, a calculation using height and weight.

肥胖是根据身体质量指数，用身高和体重计算出来的结果。

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Obesity is calculated using the Body Mass Index (BMI), a ratio of weight in comparison to height.

肥胖程度是以身体质量指数(BMI)来衡量的，身体质量指数即体重与身高的比。

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They measured height, weight and body mass index - calculated by dividing weight in kilograms by the square of your height in metres.

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GPs will be advised to use the body mass index, where the person's weight in kilograms is divided by his height squared in metres, to get a reading.

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The studies measured the participants' body mass index (BMI), a ratio of their height and weight, but it wasn't able to take into account their body fat composition, or how much of their overall body weight was made up of fat versus muscle.

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