Table 4 External cross-validation of published bioimpedance-based equations for the prediction of ALM in 195 Asian Korean people in the current study
From: Two-megahertz impedance index prediction equation for appendicular lean mass in Korean older people
Predicted ALM (kg) | R2a | Biasb (kg) | LoA (kg) | Pc | TE (kg) | Subjective Rating | Ry-y’, meand | PIA (%) | ||
|---|---|---|---|---|---|---|---|---|---|---|
Measured ALM | 17.44 ± 3.71 | Male | Female | |||||||
Supine position | ||||||||||
Kim@2MHz_BWA2.0 | 17.45 ± 3.58 | 0.931 | -0.01 ± 0.97 | -1.92, 1.90 | .875 | 0.97 | Excellent | Very good | 0.131 (P = .068) | 82.1 |
Vermeiren, et al. [15] | 15.66 ± 3.37 | 0.918 | 1.78 ± 1.08 | -0.33, 3.89 | .000 | 2.08 | Poor | Poor | 0.319 (P = .000) | 32.8 |
Scafoglieri, et al. [17] | 17.51 ± 1.86 | 0.630 | -0.07 ± 2.50 | -4.98, 4.84 | .702 | 2.50 | Poor | Poor | 0.776 (P = .000) | 28.2 |
Sergi, et al. [16] | 23.62 ± 3.42 | 0.836 | -6.18 ± 1.50 | -9.12, -3.23 | .000 | 6.36 | Poor | Poor | 0.199 (P = .005) | 00.5 |
Kyle, et al. [19] | 22.65 ± 4.09 | 0.847 | -5.21 ± 1.60 | -8.36, -2.07 | .000 | 5.45 | Poor | Poor | -0.245 (P = .000) | 00.5 |
Kim, et al. [20] | 9.41 ± 2.37 | 0.885 | 8.03 ± 1.68 | 4.74, 11.32 | .000 | 8.21 | Poor | Poor | 0.806 (P = .000) | 00.0 |
Peniche, et al. [18] | 16.57 ± 3.99 | 0.845 | 0.87 ± 1.57 | -2.21, 3.94 | .000 | 1.79 | Fair | Poor | -0.185 (P = .010) | 55.4 |