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**7岁以下儿童生长发育参照标准

数据来源 卫生部妇联司 数据来源地址

解读

-3SD -2SD -1SD 中位数 +1SD +2SD +3SD 什么意思

表示处于人群的平均水平;如果在“-1sd中位数+1sd”即:中位数上下一个标准差范围之内,属于“正常范围”,代表了68%的儿童;

如果在“(-2sd~-1sd)或者(+1sd~+2sd)”即:中位数上下两个标准差范围之内,则定义为“偏矮(高)”,代表了27.4%的儿童;

如果在“(-3sd~-2sd)或者( +2sd~+3sd)”即:中位数上下三个标准差之内,则定义为“矮(高)”,代表了4.6%的儿童。极少儿童在三个标准差(<-3sd>+3sd)之外(比例小于0.5%)。

图例

从左边第一列查找年龄,以1岁(12月龄)的女孩为例,表格“7岁以下女孩身长/身高标准值”的对应数据行(例如-1SD、Median、+1SD数值)显示,统计抽样中:

  • 15.87%的个体身长/身高小于或等于72.3厘米,即另外84.13%的个体身长/身高大于72.3厘米;
  • 50.00%的个体身长/身高小于或等于75.0厘米,即另外50.00%的个体身长/身高大于75.0厘米;
  • 84.13%的个体身长/身高小于或等于77.7厘米,即另外15.87%的个体身长/身高大于77.7厘米。

alt

注:SD表示标准差(Standard Deviation);1SD对应34.13%,2SD对应47.72%,3SD对应49.87%;Median即中位数。

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