生物电阻抗与体重指数在预测肥胖相关疾病中的比较。
Comparison of bioelectrical impedance and BMI in predicting obesity-related medical conditions.
作者信息
Willett Kamali, Jiang Rui, Lenart Elizabeth, Spiegelman Donna, Willett Walter
机构信息
Department of Nutrition, Harvard School of Public Health, 665 Huntington Avenue, Boston, MA 02115, USA.
出版信息
Obesity (Silver Spring). 2006 Mar;14(3):480-90. doi: 10.1038/oby.2006.63.
OBJECTIVE
To determine the relative validity of specific bioelectrical impedance analysis (BIA) prediction equations and BMI as predictors of physiologically relevant general adiposity.
RESEARCH METHODS AND PROCEDURES
Subjects were >12,000 men and women from the Third National Health and Nutrition Examination Survey population. We examined the correlations between BMI and percentage body fat based on 51 different predictive equations, blood pressure, and blood levels of glucose, high-density lipoprotein cholesterol, and triglycerides, which are known to reflect adiposity, while controlling for other determinants of these physiological measures.
RESULTS
BMI consistently had one of the highest correlations across biological markers, and no BIA-based measure was superior. Percent body fat estimated from BIA was minimally predictive of the physiological markers independent of BMI.
DISCUSSION
These results suggest that BIA is not superior to BMI as a predictor of overall adiposity in a general population.
目的
确定特定生物电阻抗分析（BIA）预测方程和体重指数（BMI）作为生理相关总体肥胖预测指标的相对有效性。
研究方法和步骤
研究对象来自第三次全国健康与营养检查调查人群中的12000多名男性和女性。我们基于51种不同的预测方程，研究了BMI与体脂百分比、血压以及已知反映肥胖程度的血糖、高密度脂蛋白胆固醇和甘油三酯血水平之间的相关性，同时控制这些生理指标的其他决定因素。
结果
BMI在各项生物学指标中始终具有最高的相关性之一，且没有基于BIA的测量指标更优。由BIA估算的体脂百分比对独立于BMI的生理指标的预测作用极小。
讨论
这些结果表明，在一般人群中，作为总体肥胖的预测指标，BIA并不优于BMI。
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