Racial differences in the sums of skinfolds and percentage of body fat estimated from impedance in black and white girls, 9 to 19 years of age: The National Heart, Lung, and Blood Institute Growth and Health Study

被引:27
作者
Morrison, JA
Barton, BA
Obarzanek, E
Crawford, PB
Guo, SS
Schreiber, GB
机构
[1] Childrens Hosp, Med Ctr, Div Cardiol, Cincinnati, OH 45229 USA
[2] Maryland Med Res Inst, Baltimore, MD USA
[3] NHLBI, Div Epidemiol & Clin Applicat, Bethesda, MD 20892 USA
[4] Univ Calif Berkeley, Berkeley, CA 94720 USA
[5] Wright State Univ, Sch Med, Dept Community Hlth, Dayton, OH 45435 USA
[6] Wright State Univ, Sch Med, Dept Math & Stat, Div Human Biol, Dayton, OH 45435 USA
[7] WESTAT Corp, Rockville, MD 20850 USA
来源
OBESITY RESEARCH | 2001年 / 9卷 / 05期
关键词
girls; race; adiposity; impedance; skinfolds; puberty;
D O I
10.1038/oby.2001.37
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objectives: This National Heart, Lung, and Blood Institute Growth and Health Study report assesses racial differences in fat patterning in black and white girls ages 9 to 19 years, comparing the sum of triceps and subscapular skinfolds (SSFs) and percentage of body fat (%BF) from impedance as two indices of adiposity. It is hypothesized that racial differences in fat patterning manifest during puberty. Research Methods and Procedures: SSF and %BF were measured annually. Racial differences in SSF and %BF were evaluated by age. Associations between %BF and SSF were evaluated using the Pearson's correlations coefficient. Classification agreement was evaluated using the kappa-statistic. Effects of pubertal stage and race on classification agreement were examined using multivariate models. Results: White girls had a greater mean %BF at 9 to 12 years of age; black girls had a greater %BF thereafter. Black girls had a greater mean SSF at every age. The correlation coefficient between SSF and %BF was 0.79, and there was good agreement between %BF and SSF in separating high (> 85th percentile) from not high (kappa = 0.60 for whites and 0.66 for blacks). SSF associated more with %BF in prepuberty and early puberty than in late puberty. Discussion: Despite good correlations between %BF and SSF, the two methods indicate different fat patterns in black and white girls.
引用
收藏
页码:297 / 305
页数:9
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