Two cross-sectional data sets were derived from outpatients with CKD stage 3-5 in Peking University First Hospital.Two equations for estimating LBM based on midarm muscle circumference (MAMC) or hand grip strength (HGS)were developed and validated in CKD patients with dual-energy x-ray absorptiometry (DEXA) as referenced gold method. Demographic data, comorbidity, and other clinical variables were also recorded.
