Table 2.
Difference plot (based on modified Bland-Altman tests) comparing DEXA-measured LBM and each of the three estimates of the LBM using serum creatinine, MAMC and HGS in 118 HD patients
| LBM (kg) estimated by variables | Limits of agreement | Mean difference (95 % CI) | Correlation* (r) | Correlation P-value |
|---|---|---|---|---|
| All (n = 118) | ||||
| SCr | −6.7 to 6.7 | 0.0 (−0.6,0.6) | 0.34 | <0.001 |
| MAMC | −7.0 to 7.0 | 0.0 (−0.7, 0.7) | 0.35 | <0.001 |
| HGS | −7.0 to 7.0 | 0.0 (−0.6, 0.6) | 0.35 | <0.001 |
*Pearson correlation between difference and DEXA values.
DEXA Dual energy X-ray absorptiometry, MAMC mid-arm muscle circumference, HGS handgrip strength, SCr serum creatinine