用免疫比浊法对１６９名８～１１岁儿童的血浆脂蛋白（ａ）水平进行了测定。Ｌｐ（ａ）测定值呈正偏态分布，中位数（Ｐ５０值）为１１３．０ｍｇ／Ｌ，Ｐ５、Ｐ１０、Ｐ２５、Ｐ７５、Ｐ９０和Ｐ９５分别为２６．０、３５．９、５８．１、２２５．８、３７１．９、和４４４．８ｍｇ／Ｌ。以Ｐ９５值作为正常参考值范围界点，儿童血浆Ｌｐ（ａ）正常参考值为４４４．８ｍｇ／Ｌ以下。Ｌｐ（ａ）的影响因素研究结果显示：儿童血浆Ｌｐ（ａ）水平略高于成年人；有早发性冠心病家族史的儿童有相对较高的血浆Ｌｐ（ａ）水平；未观察到肥胖及膳食对血浆Ｌｐ（ａ）水平的影响。 Plasma lipoprotein (a) levels in 169 children aged 8 to 11 years were measured by immunoturbidimetry. The measured values ​​of Lp (a) showed a positive skewed distribution with a median (P50) of 113.0 mg / L and P5, P10, P25, P75, P90 and P95 of 26.0, 35.9 and 58.1, 225.8, 371.9, and 444.8 mg / L. To P95 value as the normal reference value of the cut-off point, children’s plasma Lp (a) the normal reference value of 444.8mg / L or less. The results of Lp (a) study showed that plasma Lp (a) levels in children were slightly higher than those in adults; children with a family history of early-onset CHD had a relatively high level of plasma Lp (a); no obesity And diet on plasma Lp (a) levels.