Comparison of bioelectrical impedance analysis and dual energy X-ray absorptiometry for assessment of body composition in children

Okasora, Keisuke; Takaya, Ryuzo; Tokuda, Masakuni; Fukunaga, Yasuhiro; Oguni, Tatsuya; Tanaka, Haruki; Konishi, Kazutaka; Tamai, Hiroshi

doi:10.1046/j.1442-200x.1999.4121048.x

Cited by 59 publications

(45 citation statements)

References 10 publications

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“…Even equations that were unbiased displayed this underestimation and most childhood studies show similar results. 6,8,10,11 The findings of the current study closely match the BIA findings of Bray et al 1 Although their criterion was the fourcompartment model and ours was DEXA, common equations between both studies 1,5,17,19 show similar results when viewing participants of comparable body fat. For example, the Bray equation resulted in a mean difference close to zero in both studies, and the slopes of the Bray, Deurenberg and Suprasongsin equations were significantly different from zero in both studies.…”

Section: Discussionsupporting

confidence: 85%

“…Thus, the Kushner equation does not appear to be subject to any systematic error when applied to an African-American adolescent female sample. In fact, none of the equations appear to be subject to any systematic error related to the ethnicity of the sample because the equations provide similar estimates when applied to primarily Caucasian samples 1,5,8,10 as they did in our exclusively AfricanAmerican sample. However, our results are preliminary because the equations were utilized in an exclusively African-American adolescent female sample.…”

Section: Discussionmentioning

confidence: 74%

“…Although many BIA equations were developed from children across all weight ranges, it has been recognized that BIA tends to overestimate percent body fat in leaner children and underestimate percent body fat in overweight children. [6][7][8][9][10][11] Due to this phenomenon, Lewy et al developed a separate equation from a sample of overweight children. The accuracy of this obesity-specific equation has not been tested outside of the validation sample.…”

Section: Introductionmentioning

confidence: 99%

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Percent body fat measured by BIA and DEXA in obese, African-American adolescent girls

et al. 2005

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OBJECTIVE:To compare the estimation of body fat between bioelectrical impedance analysis (BIA) and dual energy X-ray absorptiometry (DEXA) in overweight, African-American female adolescents. SUBJECTS: In total, 54 African-American adolescent female subjects were recruited for Study 1. Each adolescent's body mass index was greater than the 85th percentile and their average body fat was 45% according to DEXA. A total of 26 AfricanAmerican adolescent female subjects were available for Study 2, and had an average body fat of 26% according to DEXA. MEASUREMENTS: Percent body fat was measured by DEXA and BIA. Seven different BIA equations were tested. Both sets of data were analyzed using Bland-Altman regression analyses, utilizing percent body fat measured by DEXA as the criterion. RESULTS: The Kushner equation provided estimates that were unaffected by body fat in both studies. Estimates were unbiased when applied to the exclusively overweight sample and biased when utilized with the separate sample of normal weight and obese girls. The remaining equations were biased, provided inconsistent estimates across body weight, or were biased and provided inconsistent estimates. Ethnicity-specific and ethnicity-combined equations performed similarly in the obese sample, but became more disparate when applied to a sample encompassing a wider body weight range. The limits of agreement between all BIA equations and the DEXA estimates ranged from 6 to 9%. CONCLUSION: The study suggests that the Kushner BIA equation is appropriate for use with African-American female adolescents across the weight spectrum, while the majority of BIA equations underestimated percent body fat as body fat increased.

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Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

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Percent body fat measured by BIA and DEXA in obese, African-American adolescent girls

et al. 2005

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“…However, the children who had higher body fat percentage did not have a larger difference between the two measurements. One study with 10 obese children found a trend to underestimate BIA in relation to DXA measurements (Okasora et al, 1999). In healthy adults another study found a difference of 3.3% between BIA and DEXA, but a gender difference could not be detected (Levenhagen et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

Underestimation of percentage fat mass measured by bioelectrical impedance analysis compared to dual energy X-ray absorptiometry method in obese children

2001

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Subjects: Twenty-seven children and adolescents from the Lipid and Obesity Outpatient Clinic, Department of Pediatrics, University of Vienna, were included in the study (14 boys and 13 girls between 6 and 18 y; mean age 12.6 and 13.1 y). Methods: The body fat percentage was measured with BIA (bioelectrical impedance analyzer BIA 2000-M) and DXA (dual energy X-ray absorptiometry) methods on the same day. Results: The mean difference between the body fat mass percentage measured by BIA and DXA was 4.48 with a standard deviation of 2.93. The results measured by BIA were almost always lower than that by DXA by about 12%. The lower and upper limit of the difference in 95% con®dence interval was À5.64 and À3.32. By paired t-test, these results were signi®cantly different (P`0.001). The correlation between the two measurements was 0.826. The mean percentage of body fat mass measured by BIA was 34.86 AE 7.08% and by DXA 39.75 AE 5.63%. The differences were not changed by age and body fat percentage but they were by sex. Conclusions:The results of the study show that the body fat percentages measured by BIA and DXA method were signi®cantly different. This is very important because BIA technique is a routine technique for clinical purposes. Adjustments to the formula used for calculating the total fat mass in obese children and adolescence are necessary. Underestimation of body fat percentage measured by bioelectrical impedance analysis compared to dual X-ray absorptiometry method in obese children is three times higher with boys than with girls. Sponsorship:

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“…Данные о сопо-ставимости результатов БИА и ДРА у детей крайне противоречивы. Ряд авторов [11][12][13][14] указывают на их сопоставимость, особенно при определении ко-личества тощей массы как у детей с ожирением, так и без избытка массы тела. Другие [15,16] считают, что данные методы не эквивалентны и не взаимо-заменяемы, а для детской популяции необходима разработка отдельных нормативов в зависимости от пола, возраста и стадии полового развития.…”

Section: биоимпедансный анализunclassified

The methods for the characteristic of adipose tissue in the organism and their clinical significance

Okorokov¹,

Васюкова²,

Воронцов³

2014

Probl Endokrinol (Mosk)

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Comparison of bioelectrical impedance analysis and dual energy X-ray absorptiometry for assessment of body composition in children

Abstract: Bioelectrical impedance analysis seems to be a reasonable method for daily clinical use, but attention should be paid to the interpretation of %fat values in underweight and overweight children.

Cited by 59 publications

References 10 publications

Percent body fat measured by BIA and DEXA in obese, African-American adolescent girls

Percent body fat measured by BIA and DEXA in obese, African-American adolescent girls

Underestimation of percentage fat mass measured by bioelectrical impedance analysis compared to dual energy X-ray absorptiometry method in obese children

The methods for the characteristic of adipose tissue in the organism and their clinical significance

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