PREDICTING BODY FATNESS - THE BODY-MASS INDEX VS ESTIMATION BY BIOELECTRICAL-IMPEDANCE
PREDICTING BODY FATNESS - THE BODY-MASS INDEX VS ESTIMATION BY BIOELECTRICAL-IMPEDANCE
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DOI：
10.2105/ajph.85.5.726
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发表时间：
1995-05-01
影响因子：
12.7
通讯作者：
WILSON, PWF
中科院分区：
文献类型：
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作者：
ROUBENOFF, R;DALLAL, GE;WILSON, PWF
体重指数（以千克为单位的体重/以平方米为单位的身高）是肥胖的常见替代指标。随着生物电阻抗分析的出现，现在可以更精确地测量人群的肥胖程度。我们通过生物电阻抗分析测量了参与弗雷明汉研究的 2032 名年龄在 31 岁至 99 岁之间的成年人的身高、体重和脂肪百分比。体重指数对于女性 (R(2) = 0.55) 和男性 (R(2) = 0.38) 的肥胖预测效果较差，并且不精确（估计的标准误差 = 5 个百分点）。脂肪百分比和体重指数之间的关系在两性中均呈二次关系，并且在女性中随年龄而变化 (P < .0001)，在男性中变化程度较小 (P < .027)。这些数据表明，与生物电阻抗相比，体重指数是一种不精确的脂肪测量方法。
The body mass index (weight in kilograms/height in square meters) is a common surrogate for fatness. With the advent of bioelectrical impedance analysis, more precise measurement of fatness in populations is now possible. We measured height, weight, and percentage that is fat by bioelectrical impedance analysis in 2032 adults, ages 31 to 99, participating in the Framingham studies. Body mass index was a poor predictor of fatness in women (R(2) = 0.55) and men (R(2) = 0.38), and was imprecise (standard error of estimate = 5 percentage points). The relationship between percentage fat and body mass index was quadratic in both sexes, and was altered by age in women (P < .0001) and, to a lesser extent, in men (P < .027). These data suggest that body mass index is an imprecise measurement of fatness compared with bioelectrical impedance.