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Table 1 Validation of PE LBM in healthy adults from the Cytokine, Adiposity, Sarcopenia and Ageing (CASA) study cohort (n = 195) against DXA derived LBM in the validation cohort (n = 52)

From: Lean body mass: the development and validation of prediction equations in healthy adults

  Mean (SD), kg Mean error (95%CI), kg P-value for mean error R ρ c(95% CI) [C b] 95% limits of agreement RMSE (95% CI), kg
Total (n = 52)        
LBM DXA 46.2 (9.49)       
LBM PE1 48.1 (8.93) 1.88 ( 0.79, 2.97) 0.001 0.911* 0.891 (0.820, 0.935) [0.977] -9.72, 5.96 (-20.7 to 12.6%) 4.32 (2.84, 5.80)
LBM PE2 47.9 (8.95) 1.69 (0.62, 2.75) 0.003 0.915* 0.899 (0.832, 0.940) [0.982] -9.20, 5.83 (-19.9 to 12.6%) 4.15 (2.70, 5.60)
LBM PE3 47.7 (9.13) 1.50 (0.44 ,2.57) 0.006 0.917* 0.904 (0.840, 0.943) [0.986] -8.99, 5.98 (-19.5 to 13.0%) 4.07 (2.63, 5.51)
LBM PE4 47.1 (8.96) 0.86 (-0.22, 1.94) 0.114 0.914* 0.908 (0.846, 0.946) [0.994] -8.44, 6.72 (-18.3 to 14.6%) 3.93 (2.51, 5.35)
  1. *P-value <0.001, R = correlation, SD = Standard Deviation.
  2. RMSE = root mean squared prediction error, CI = confidence interval, R = Pearson Correlation Coefficient, Cb = Bias Correction Factor, ρc = Concordance Correlation Coefficient.