Mean Expected Error in Prediction of Total Body Water: A True Accuracy Comparison between Bioimpedance Spectroscopy and Single Frequency Regression Equations

Table 4

BIS volume prediction equations using BMI compensation.

Body fluid	Equation	values
ECW		= 0.188/BMI + 0.2883
ICW		= 5.8758/BMI + 0.4194

Note: and were obtained by regression to minimize the dependency of the error from BMI in [24, 25].