Departamento de Saúde Materno-Infantil, Universidade de São Paulo (USP), São Paulo, SP, Brazil.
J Trop Pediatr. 2011 Jun;57(3):208-12. doi: 10.1093/tropej/fmq076. Epub 2010 Sep 17.
We aimed to evaluate the classification of arm circumference (AC) in pre-school children by using National Center for Health Statistics (NCHS/CDC-2000) and World Health Organization (WHO-2006) references. We evaluated 205 children: weight, height and AC were assessed and the body mass index (BMI) was calculated. The BMI values were classified into Z-scores by the WHO referential. The AC was classified into Z-cores by two references, comparing the whole-sample value and among groups (tercis) of BMI Z-score. The correlation was also evaluated between differences of AC with BMI Z-score. The WHO referential classified the AC in Z-scores greater than the NCHS/CDC, which is more specific and less sensitive than the NCHS/CDC for lean children and at the same time more sensitive and less specific for children with overweight. In conclusion, a significant difference in the AC classification occurs according to the referential used.
我们旨在使用国家健康统计中心（NCHS/CDC-2000）和世界卫生组织（WHO-2006）的参考标准来评估学龄前儿童的臂围（AC）分类。我们评估了 205 名儿童：评估了体重、身高和 AC，并计算了体重指数（BMI）。根据世卫组织参考标准，将 BMI 值分类为 Z 分数。通过两种参考标准，将 AC 分类为 Z 分数，比较了整个样本值和 BMI Z 分数的 tertis（三分位）组。还评估了 AC 与 BMI Z 分数差异之间的相关性。与 NCHS/CDC 相比，WHO 参考标准将 AC 分类为 Z 分数更高，对于瘦弱儿童，该标准比 NCHS/CDC 更具体但灵敏度更低，而对于超重儿童，该标准则更敏感但特异性更低。总之，根据使用的参考标准，AC 的分类会出现显著差异。
