Danford et al reported an equation for predicting total body water in young children using bioelectrical impedance analysis (BIA). The authors are from the University of Chicago.
Patient selection: child from 5 to 9 years of age
Parameters:
(1) height in centimeters
(2) resistance in ohms(tetrapolar method)
(3) weight in kilograms
total body water in kilograms =
= (0.45 * ((height)^2) / (resistance)) + (0.11 * (weight)) + 1.84
Performance:
• SEE is 0.62 kg.
• The R-squared was 0.98.
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