Noradilah Mohd Jonit, Ang Yeow Nyin, Kamaruddin Nor Azmi, Deurenberg Paul, Ismail Mohd Noor, Poh Bee Koon
Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
Nutrition Consultant, Langkawi, Malaysia.
Asia Pac J Public Health. 2016 Jul;28(5 Suppl):74S-84S. doi: 10.1177/1010539516641505. Epub 2016 Apr 12.
This study aims to validate skinfold (SKF) and bioelectrical impedance analysis (BIA) against dual-energy X-ray absorptiometry (DXA) in determining body fat percentage (BF%) of Malay children aged 7 to 11 years. A total of 160 children had their BF% assessed using SKF and BIA, with DXA as the criterion method. Four SKF equations (SKFBray, SKFJohnston, SKFSlaughter, and SKFGoran) and 4 BIA equations (BIAManufacturer, BIAHoutkooper, BIARush, and BIAKushner) were used to estimate BF%. Mean age, weight, and height were 9.4 ± 1.1years, 30.5 ± 9.9 kg, and 131.3 ± 8.4 cm. All equations significantly underestimated BF% (P < .05). BIA equations had reasonable agreement with DXA and were independent of BF% with BIAManufacturer being the best equation. Although BIA underestimates BF% as compared with DXA, BIA was more suitable to measure BF% in a population that is similar to this study sample than SKF, suggesting a need to develop new SKF equations that are population specific.
本研究旨在验证皮褶厚度（SKF）和生物电阻抗分析（BIA）相对于双能X线吸收法（DXA）在测定7至11岁马来儿童体脂百分比（BF%）方面的准确性。共有160名儿童接受了SKF和BIA评估，以DXA作为标准方法。使用四个SKF方程（SKFBray、SKFJohnston、SKFSlaughter和SKFGoran）和四个BIA方程（BIAManufacturer、BIAHoutkooper、BIARush和BIAKushner）来估计BF%。平均年龄、体重和身高分别为9.4±1.1岁、30.5±9.9千克和131.3±8.4厘米。所有方程均显著低估了BF%（P<.05）。BIA方程与DXA具有合理的一致性且与BF%无关，其中BIAManufacturer是最佳方程。尽管与DXA相比BIA低估了BF%，但与SKF相比，BIA更适合于测量与本研究样本相似人群中的BF%，这表明需要开发针对特定人群的新SKF方程。
