Table 3.
Comparison of prediction equations for estimating ASM in the present (in the cross-validation group) and previous studies
| ASM (kg)* | Difference from DXA-measured value (P value) | Correlation coefficients between DXA-measured and predicted ASM (R 2 value) | Significance of correlations(P value) | SEE (kg) | |
|---|---|---|---|---|---|
| Men | |||||
| DXA-measured value | 23.4 ± 3.1 | – | – | – | – |
| Present study | 23.2 ± 2.9 | N.S. | 0.81 | < 0.001 | 1.10 |
| Baumgartner RN et al. (1998)a | 21.6 ± 2.0 | < 0.001 | 0.71 | < 0.001 | 1.58 |
| Wen X et al. (2011)b | 22.6 ± 2.3 | < 0.001 | 0.75 | < 0.001 | 1.63 |
| Visvanathan R et al. (2012)c | 23.3 ± 2.1 | N.S. | 0.68 | < 0.001 | 1.95 |
| Kulkarni B et al. (2013)d | 21.7 ± 2.6 | < 0.001 | 0.74 | < 0.001 | 1.28 |
| Villani AM et al. (2014)e | 20.5 ± 2.2 | < 0.001 | 0.59 | < 0.001 | 1.90 |
| Women | |||||
| DXA-measured value | 15.3 ± 1.9 | – | – | – | – |
| Present study | 15.1 ± 1.7 | N.S. | 0.72 | < 0.001 | 1.02 |
| Baumgartner RN et al. (1998)a | 14.1 ± 1.5 | < 0.001 | 0.69 | < 0.001 | 1.58 |
| Tankó LB et al. (2002)f | 15.1 ± 1.8 | N.S. | 0.54 | < 0.001 | 1.70 |
| Wen X et al. (2011)b | 14.1 ± 1.9 | < 0.001 | 0.65 | < 0.001 | 1.63 |
| Visvanathan R et al. (2012)c | 14.2 ± 1.6 | < 0.001 | 0.59 | < 0.001 | 1.95 |
| Kulkarni B et al. (2013)d | 13.7 ± 1.7 | < 0.001 | 0.66 | < 0.001 | 1.05 |
| Villani AM et al. (2014)e | 16.4 ± 1.8 | < 0.001 | 0.40 | < 0.001 | 1.90 |
Mean ± SD. SEE standard error of estimate. Prediction equations of ASM for the present study were based on Table 2 (step 4 in men and step 5 in women). Prediction equations from previous studies using anthropometric measurements were as follows. a 0.2487 * weight (kg) + 0.0483 * height (cm) – 0.1584 * hip circumference (cm) + 0.0732 * handgrip strength (kg) + 2.5843 (only men) + 5.8828, b 0.193 * weight (kg) + 0.107 * height (cm) – 4.157 * gender (men = 1, women = 2) – 0.037 * age (years) – 2.631, c 10.047427 + 0.353307 * weight (kg) – 0.621112 * BMI – 0.022741 * age (years) + 5.096201, d 0.2 * weight (kg) + 0.14 * height (cm) –13.432 – 0.0445 * age (years) in men and 0.17 * weight (kg) + 0.102 * height (cm) – 9.852 – 0.028 * age (years) in women, e 16.77–0.036 * age (years) + 0.385 * weight (kg) – 0.873 * BMI, f 0.11 * weight (kg) –13.3 – 0.05 * age (years) + 16.1 * height (m)