Table 1.
The validity calculations comparing the BIA and DEXA estimates of the FFMI separated by gender
| Gender | Variable | FFMI (kg/m2) | Pearson's correlation (r) | standard error of the estimate (kg/m2) | Total error (kg/m2) |
|---|---|---|---|---|---|
| Male | DEXA | 21.1 (1.6) | 0.722 | 1.0 | 0.9 |
| BIA | 20.6 (1.1)* | ||||
| Female | DEXA | 17.5 (0.6) | 0.599 | 0.5 | 0.7 |
| BIA | 16.2 (0.4)* |
BIA: Bioelectrical Impedance Analysis; DEXA: Dual Energy X-Ray Absorptiometry; FFMI: Estimates of the Fat Free Mass Index
*
represents a significant mean difference from the DEXA estimate, P<0.05