体重指数是一个以身高与体重为基础计算出的比值，其正常范围通常在18和25之间，超过25为超重，超过30即为肥胖。
BMI is a calculation of height to weight, and the normal range is usually considered to be 18 to 25, with more than 25 considered overweight and above 30 obese.
体质指数是一个考虑到身高和体重的比值。
The index is a ratio that takes into account height and weight.
目的用经典的双生子设计探讨遗传因素和环境因素对青少年身高、体重、体质指数(BMI)、腰围、腰臀围比值(WHR)等体型指征相关指标的影响程度。
Objective To investigate the impact of inheritance on height, weight, body mass index (BMI), waist circumference and waist-hip ratio (WHR) in adolescent by the classic twin design.
比较各组小鼠心脏重量和体重的比值（HW/BW）、心肌组织病理学积分（PS）、心肌组织病毒载量、血清CK-MB水平。
Ratio of mouse heart weight versus body weight (HW/BW), myocardial tissue pathological score of cardiac tissue (PS), the level of CK MB in serum and CVB3 loading of myocardial tissue were analyzed.
体重指数与腰围、腰臀围比值、身体脂肪、皮下脂肪厚度均有较好的相关性。
There were good correlations between weight index with waistline, proportionality of waistline to hip circumference, body fat and sebum thickness.
研究者发现，具有身体质量指数，也就是身高与体重的比值更高的男性，从婚姻的一开始便会更加幸福，同时也会保持这样一种状态。
They discovered that men who had a higher BMI, which is calculated from height and weight, were happier at the start of their marriage and stayed that way.
早产与分娩期肾结石的比值比为1.8。但是并没有发现结石与低出生体重儿或婴儿死亡有关。
The odds ratio for preterm delivery with intrapartum kidney stones was 1.8. However, there was no connection found between stones and low birth weight or infant death.
方法采用人体测量参数体重指数（BMI）和腰臀围比值（W/H）将体脂分布不同分为腹内型肥胖组、皮下肥胖组及非肥胖组。
Methods According to body mass index(BMI) and waist to hip circumference(W/H), the subjects were classified into three groups: intra abdominal obesity, subcutaneous obesity and non obesity group.
方法：以体重指数(BMI)作为评价体脂含量指标，以腰臀围比值(WHR)作为评价体脂分布指标。
Methods: Body mass index (BMI) was used as the index for evaluating fat content and waist to hip measurement ratio (WHR) for fat distribution.
方法：以体重指数(BMI)作为评价体脂含量指标，以腰臀围比值(WHR)作为评价体脂分布指标。
Methods: Body mass index (BMI) was used as the index for evaluating fat content and waist to hip measurement ratio (WHR) for fat distribution.
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