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. Author manuscript; available in PMC: 2023 Jul 1.
Published in final edited form as: Nutr Res. 2022 Mar 26;103:40–46. doi: 10.1016/j.nutres.2022.03.007

Table 1.

Comparison of body composition values between multi-frequency bioelectrical impedance and dual-energy x-ray absorptiometry for all subjects (n = 181).

95% Limits of Agreement
Variable (Mean ± SD) d ICC R2 SEE CE ± 1.96 SD Upper Lower Trend
DXA BF% 30.25 ± 9.06 ---
InBody BF% 27.08 ± 9.68 1.14 0.95 0.92 2.60 −3.17 ± 5.45 2.28 −8.62 0.22
DXA FM 21.71 ± 9.98 ---
InBody FM 20.33 ± 10.75 0.65 0.99 0.98 2.04 −1.38 ± 4.16 2.78 −5.54 0.36
DXA FFM 51.50 ± 12.51 ---
InBody FFM 52.72 ± 12.49 0.60 0.99 0.96 1.90 1.22 ± 3.99 5.21 −2.77 −0.01

DXA = Dual-energy x-ray absorptiometry; InBody 570 = Multi-frequency bioelectrical impedance; BF% = body fat percentage; FFM = fat-free mass; SEE = standard error of estimate; CE = constant error.