Davies and Gregory reported an equation for predicting total body water in pediatric patients using bioelectrical impedance analysis (BIA). The authors are Dunn Nutrition Unit (Cambridge) and the Medical School (Newcastle upon Tyne) in England.

Patient selection: from 5.2 to 17.9 years



(1) height in centimeters

(2) impedance in ohms


total body water in liters =

= (0.58 * ((height)^2) / (impedance)) + 0.13



• SEE 1.3 liters

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