Table 3.

Accuracy and precision of different anthropometric equations in predicting TBW.

Mean ± SD (L)Difference Estimated TBW − Measured TBW (L)RMSE (L)CV (%)
Measured TBW16.9 ± 9.5
Equations 2a and 2b16.9 ± 9.20.001 ± 2.152.1712.8
Equations 3a and 3b16.9 ± 9.2−0.001 ± 2.332.3613.9
Mellits & Cheek19.0 ± 11.3a2.04 ± 3.172.3714.0
New Healthy21.1 ± 13.5a4.19 ± 4.992.4514.5
0.6 × Wt18.9 ± 11.9a1.96 ± 4.533.4020.2
  • a Significant differences from measured TBW, *P < 0.0001.