期刊
EUROPEAN JOURNAL OF CLINICAL NUTRITION
卷 68, 期 6, 页码 664-670出版社
SPRINGERNATURE
DOI: 10.1038/ejcn.2013.282
关键词
body composition; body fat percentage; dual X-Ray absorptiometry; skinfold thickness; body mass index; waist circumference
资金
- Rigshospitalet's Research Foundation
- Danish Medical Research Council [9700909]
- Danish Centre on Endocrine Disrupters [MST-621-00072]
- Svend Andersen's Foundation
- Vilhelm Bang's Foundation
BACKGROUND/OBJECTIVES: Total body fat percentage (%BF) evaluated by dual energy X-ray absorptiornetry (DXA) scans (DXA %BF) is widely recognized as a precise measure of fatness. We aimed to establish national reference curves for DXA %BF, %BF calculated from skinfolds (SF %BF) and waist circumference (WC) in healthy children, and to compare agreement between the different methods. SUBJECTS/METHODS: Based on 11 481 physical examinations (anthropometry) and 1200 DXA scans from a longitudinal cohort of Danish children (n = 2647), we established reference curves (LMS-method) for SF %BF, WC (birth to 14 years) and DXA %BF (8-14 years). Age-, and sex-specific Z-scores for body mass index (BMI), WC and SF %BF were compared. Sensitivity and specificity were calculated for agreement of WC, SF %BF and BMI with DXA %BF to identify obese children (> + 1 s.d.). RESULTS: %BF differed with age, sex, pubertal stage and social class. SF %BF correlated strongly with DXA %BF (r = 0.86), BMI and WC also correlated positively with DXA %BF (Z-scores; r = 0.78 and 0.69). Sensitivity and specificity were 79.5 and 93.8 for SF %BF, 75.9 and 90.3 for BMI and 59.2 and 95.4 for WC. CONCLUSIONS: SF %BF showed the highest correlation and best agreement with DXA %BF in identifying children with excess fat (+ 1 s.d.).
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