Evaluation of Lean Body Weight Equation by Dual-Energy X-Ray Absorptiometry Measures

摘要: BACKGROUND When managing patients with disorders that require clinical intervention, a practical assessment of body habitus is valued. The Duffull-Green lean weight (LBW) equation was derived and validated in adults across wide mass index (BMI) range. Whether this predictive will perform well at BMI extremes or better than widely used empiric "ideal" (IBW) unknown. MATERIALS AND METHODS Calculated LBW calculated IBW were each compared the dual-energy x-ray absorptiometry (DXA)-derived (LBM) by simple linear regression. A mixed model to determine how performed over time more 1 DXA measurement. RESULTS At 0, 32 18-67 years old, all obese (BMI: 36-65 kg/m2), while remaining 7 had parenteral nutrition-dependent intestinal failure 17-25 kg/m2). subset underwent bariatric surgery after 0 (BMI follow-up: 22-49 predictor LBM ( R2 = 0.67, P < .0001), not 0.04, .25). remained .0001) without significant interaction number months since 0. CONCLUSION successfully predicted patient population range BMIs both single point considerable loss. In setting, an performs various disease states sizes advantageous.