Jensen Natália Sanchez Oliveira, Camargo Taís de Fátima Borges, Bergamaschi Denise Pimentel
Departamento de Epidemiologia, Faculdade de Saúde Pública, Universidade de São Paulo, São Paulo, SP, Brasil,
Cien Saude Colet. 2016 Apr;21(4):1175-80. doi: 10.1590/1413-81232015214.138712015.
This study aimed to investigate the relationship between anthropometric indicators - body mass index (BMI), waist circumference (WC), and waist-to-height ratio (WHtR) - and the sum of skinfold thicknesses in 7-10-year-old children attending a public school in São Paulo (SP). Height, weight, WC and triceps, biceps, subscapular and suprailiac skinfolds were measured, and the sum of skinfold thicknesses, BMI and WHtR were calculated. A Bland-Altman analysis was used in order to compare methods, with values transformed into z-scores. The analysis of limits of agreement and confidence intervals showed evidence of good agreement, above all between BMI and WC, and the sum of skinfold thicknesses, complying with strict agreement limits and differences smaller than 1 standard deviation (SD). WHtR showed moderate limits of agreement, from -1.02 to + 0.64 SD (boys) and -0.74 to + 1.12 SD (girls); its performance was not better than that of WC alone, the lower and upper limits of agreement for which were -0.91 to + 0.58 SD (boys) and -0.56 to + 0.89 SD (girls). The results support the use of anthropometric indicators to classify nutritional status, above all BMI and WC, in that both are similar when classifying children according to body fatness, and confer the advantages of being easy to obtain and affordable.
本研究旨在调查圣保罗市（SP）一所公立学校7至10岁儿童的人体测量指标——体重指数（BMI）、腰围（WC）和腰高比（WHtR）——与皮褶厚度总和之间的关系。测量了身高、体重、腰围以及肱三头肌、肱二头肌、肩胛下和髂上的皮褶厚度，并计算了皮褶厚度总和、BMI和WHtR。采用Bland-Altman分析来比较方法，将数值转换为z分数。一致性界限和置信区间分析显示出良好一致性的证据，尤其是BMI与WC以及皮褶厚度总和之间，符合严格的一致性界限且差异小于1个标准差（SD）。WHtR显示出中等的一致性界限，男孩为-1.02至+0.64 SD，女孩为-0.74至+1.12 SD；其表现并不优于单独使用WC，WC的一致性下限和上限分别为男孩-0.91至+0.58 SD，女孩-0.56至+0.89 SD。结果支持使用人体测量指标来分类营养状况，尤其是BMI和WC，因为在根据体脂对儿童进行分类时两者相似，并且具有易于获取和成本低廉的优势。
