BIOIMPEDANCE NORMS FOR THE HEMODIALYSIS POPULATION

More than 3,000 hemodialysis patients were examined with single-freque ncy bioelectrical impedance analysis (BIA). Distributions of resistanc e, reactance, phase angle (PA), and estimates of total body water (TBW ) and body cell mass (BCM) by BIA were determined, and compared with t raditional laboratory markers of nutritional status. Bioimpedance para meters and body composition estimates differed significantly by age, s ex, race, and diabetic status. PA and BCM correlated directly with ser um creatinine, albumin, and prealbumin concentrations. Population-base d norms for bioimpedance parameters and estimates of body composition are provided.