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

Table 1

Descriptive data of 97 study participants.

Variable	Boys (57)		Girls (40)		All (97)		value
	Mean	SD	Mean	SD	Mean	SD
Age (years)	10.8	2.4	10.3	2.6	10.6	2.5	0.35
Height (cm)	143	11.8	142	13.6	143	12.5	0.54
Weight (kg)	52.0	13.7	49.6	13.8	51.0	12.8	0.61
BMI (kg/m^2)	25.7	3.4	25.2	4.1	25.5	3.7	0.53
FM DXA (kg)	21.8	6.1	22.1	7.1	21.9	6.5	0.81
FM BIA (kg)	24.4	9.6	21.9	10.1	23.4	9.8	0.022^#
%FM DXA	41.4	3.6	43.2	4.2	42.1	3.9	0.21
%FM BIA	44.6	9.5	41.3	9.1	43.3	9.4	0.24
FFM DXA (kg)	29.5	7.4	27.5	7.5	28.7	7.5	0.09
FFM BIA (kg)	27.6	6.7	27.7	6.7	27.6	6.6	0.88

Abbreviations: BMI: body mass index; FM DXA: fat mass, dual-energy X-ray absorptiometry; FM BIA: fat mass, bioelectrical impedance; %FM DXA: percentage fat mass, dual-energy X-ray absorptiometry; %FM BIA: percentage fat mass, bioelectrical impedance; FFM DXA: fat-free mass, dual-energy X-ray absorptiometry; FFM BIA: fat-free mass, bioelectrical impedance. contrasts gender differences.