沈阳市城区0～6岁儿童亚临床维生素A缺乏病流行病学调查

Epidemic Investigation of Children Aged 0～6 Years with Subclinical Vitamine A Deficiency in Shenyang City.

【目的】 了解沈阳市城区 0～ 6岁儿童血清维生素A水平。 【方法】 对市内五区的 10 784名儿童采用微量荧光光度法检测血清维生素A含量。 【结果】 血清维生素A平均水平为 (1.2 0± 0 .44) μmol/L ,0 .7～ 1.0 5 μmol/L占 3 3 .10 %。 0 .3 5～ 0 .69μmol/L占 10 .5 0 %。 3岁儿童血清维生素A水平较低。 【结论】 ①亚临床维生素A缺乏病发病率较高。②膳食中含维生素A丰富的食物供给不足是亚临床维生素A缺乏病患病的直接原因。

Objective To investigate the vitamin A level in serum of children aged 0～6 years in Shenyang city. Methods Microflurescence was used to detect the vitamin A level in serum of 10 784 cases of children in five districts of Shenyang city. Results The mean level of serum vitamin A was(1.20±0.44)μmol/L.The perentages of 0.7～1.05μmol/L and 0.35～0.69μmol/L were 33.10% and 10.50% respectively.The vitamin A level in serum of children aged 3 years were relatively low. Conclusions ①The rate of subclinical vitamin A deficiency was relatively high.②The insufficiency of vitamine A in diet was the direct cause of subclinical vitamin A deficiency.③Vitamin A deficiency may influence the physical development of children.