Concordance between Body Composition Indices Measured with Dual-Energy X-Ray Absorptiometry and Bioelectrical Impedance Analysis in Obese Children in Sri Lanka

Table 3

Mean (SD) difference and 95% CI between the measurements made by DXA and BIA according to gender.

Variable measured	Mean difference (SD)	SEE	95% confidence interval of the difference		value
			Lower	Upper
Fat mass: boys	-2.08 (5.11)	3.56	-3.44	-0.71	0.004
Fat mass: girls	-0.85 (3.94)	2.44	-2.11	0.41	0.18
% fat mass: boys	-2.18 (8.62)	5.46	-4.49	0.13	0.06
% fat mass: girls	0.26 (6.82)	3.72	-1.92	2.44	0.81
Fat-free mass: boys	1.52 (4.48)	4.49	0.32	2.72	0.014
Fat-free mass: girls	0.32 (3.62)	3.50	-0.84	1.48	0.58