Development of a WHO growth reference for school-aged children and adolescents
Development of a WHO growth reference for school-aged children and adolescents
复制标题
DOI：
10.2471/blt.07.043497
复制
发表时间：
2007-09-01
期刊：
影响因子：
--
通讯作者：
Siekmann, Jonathan
中科院分区：
文献类型：
--
作者：
Onis, Mercedes de;Onyango, Adelheid W;Siekmann, Jonathan
目的建立雅阁WHO儿童生长标准（学龄前儿童）和成人体重指数（BMI）标准的学龄期儿童和青少年生长曲线（1-24岁）与五岁以下儿童成长标准的横截面样本（18-71个月）的数据合并，以平滑两个样本之间的过渡。国家的最先进的统计方法，用于构建世界卫生组织儿童生长标准（0-5岁），即Box-Cox幂指数（BCPE）方法与适当的诊断工具，用于选择最佳的模型，被施加到这个组合sample.Findings合并的数据集导致在5年的年龄，体重，年龄和BMI年龄的身高平稳过渡。对于所有百分位数的年龄BMI，5岁时两条曲线之间的差异幅度大多为0.0 kg/m2至0.1 kg/m2。在19岁时，新的BMI值在+1标准差（SD）为男孩25.4 kg/m2，女孩25.0 kg/m2。这些数值相当于成人的超重临界值（>= 25.0 kg/m2）。同样，+2 SD值（男女均为29.7 kg/m2）与肥胖的临界值（>= 30.0 kg/m2）非常接近。结论新曲线与WHO儿童生长标准（5岁）和推荐的成人超重和肥胖临界值（19岁）非常一致。它们填补了生长曲线中的差距，并为5至19岁年龄组提供了适当的参考。
Objective To construct growth curves for school-aged children and adolescents that accord with the WHO Child Growth Standards for preschool children and the body mass index (BMI) cut-offs for adults.Methods Data from the 1977 National Center for Health Statistics (NCHS)/WHO growth reference (1-24 years) were merged with data from the under-fives growth standards' cross-sectional sample (18-71 months) to smooth the transition between the two samples. State-of-the-art statistical methods used to construct the WHO Child Growth Standards (0-5 years), i.e. the Box-Cox power exponential (BCPE) method with appropriate diagnostic tools for the selection of best models, were applied to this combined sample.Findings The merged data sets resulted in a smooth transition at 5 years for height-for-age, weight-for-age and BMI-for-age. For BMI-for-age across all centiles the magnitude of the difference between the two curves at age 5 years is mostly 0.0 kg/m(2) to 0.1 kg/m(2). At 19 years, the new BMI values at +1 standard deviation (SD) are 25.4 kg/m(2) for boys and 25.0 kg/m(2) for girls. These values are equivalent to the overweight cut-off for adults (>= 25.0 kg/m(2)). Similarly, the +2 SD value (29.7 kg/m(2) for both sexes) compares closely with the cut-off for obesity (>= 30.0 kg/m(2)).Conclusion The new curves are closely aligned with the WHO Child Growth Standards at 5 years, and the recommended adult cut-offs for overweight and obesity at 19 years. They fill the gap in growth curves and provide an appropriate reference for the 5 to 19 years age group.