Table 1.
Anthropometric data, body composition assessed by DXA and BIA.
Fig 1.
Comparison of fat mass and fat-free mass measurements by DXA and BIA.
Fat mass (FM) and fat-free mass (FFM) were measured by DXA (Lunar Prodigy Advance) and BIA (BodyStat Quadscan 4000). Bland Altman plots were created with difference between DXA and BIA for FM and FFM and average of both values. Correlations between values of DXA and BIA were also performed and showed in insert graphs with Pearson r and the concordance coefficient of Lin (ρc).
Fig 2.
Differences between fat mass and fat-free mass measurements by DXA and BIA in patients with low BMI.
Fat mass (FM) and fat-free mass (FFM) were measured by DXA (Lunar Prodigy Advance) and BIA (BodyStat Quadscan 4000) in patients with BMI < 16 kg.m-2 (n = 162, upper panels) and patients with BMI between 16 and 18.5 kg.m-2 (n = 217, lower panels). Differences of values obtained by DXA and BIA were compared according to the BMI. The blue line represents the linear regression.
Fig 3.
Differences between fat mass and fat-free mass measurements by DXA and BIA in patients with normal BMI.
Fat mass (FM) and fat-free mass (FFM) were measured by DXA (Lunar Prodigy Advance) and BIA (BodyStat Quadscan 4000) in patients with BMI between 18.5 and 25 kg.m-2 (n = 237). Differences of values obtained by DXA and BIA were compared according to the BMI. The blue line represents the linear regression.
Fig 4.
Differences between fat mass and fat-free mass measurements by DXA and BIA in overweight patients.
Fat mass (FM) and fat-free mass (FFM) were measured by DXA (Lunar Prodigy Advance) and BIA (BodyStat Quadscan 4000) in patients with BMI between 25 and 30 kg.m-2 (n = 328). Differences of values obtained by DXA and BIA were compared according to the BMI. The blue line represents the linear regression.
Fig 5.
Differences between fat mass and fat-free mass measurements by DXA and BIA in obese patients.
Fat mass (FM) and fat-free mass (FFM) were measured by DXA (Lunar Prodigy Advance) and BIA (BodyStat Quadscan 4000) in patients with obesity grade 1 (n = 903, upper panels), grade 2 (n = 915, middle panels) or grade 3 (n = 893, upper panels). Differences of values obtained by DXA and BIA were compared according to the BMI. The blue line represents the linear regression.