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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BMI, or body mass index, is a ratio of weight to height.

身体质量指数，是体重和身高的比例。

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Body fat was assessed in two ways: body mass index (BMI), which is a ratio of weight to height, and body fat percentage.

通过两种方法检测体脂：身高体重指数(BMI)，这是一个体重和身高的比例，以及身体脂肪比。

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All models were required to have a body mass index -- a ratio of height and weight -- above 18, the minimum limit considered healthy by the World Health Organization.

CNN: Young models dying to be skinny

The name alone is enough to raise eyebrows, but wait until you see the special features: a biorhythm calculator, a fatness function that calculates a user's height-to-weight ratio, a calendar for keeping track of your menstrual cycle and a calorie-counting function.

ECONOMIST: Mobile telephones

Although the trial has several limitations, children in the low sugar group scored significantly lower across multiple measures of obesity, including BMI, weight, skinfold-thickness measurements, waist-to-height ratio, and fat mass.

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