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目的 :通过测定血浆视黄醇水平以了解汕头市区儿童维生素A的营养状况。方法 :采用高效液相色谱法对汕头市区2 81名 3～ 5岁儿童进行了血浆视黄醇水平测定。结果 :2 5 6 %的儿童血浆视黄醇水平处于 ( 1 0～ 30 ) μg/dL ;5 0 2 % ( 30～ 40 )μg/dL ;2 4 2 % >40 μg/dL ;血浆视黄醇水平平均值没有性别差异。结论 :所调查的 2 81名 3～ 5岁的儿童中 ,没有严重缺乏维生素A者 ,但有约四分之一的儿童处于亚临床维生素A缺乏或维生素A摄入不足
OBJECTIVE: To understand the nutritional status of vitamin A in children in Shantou City through the determination of plasma retinol levels. Methods: The plasma retinol levels of 2 81 children aged 3 to 5 years in Shantou City were determined by HPLC. Results: The plasma retinol levels in 25.6% of children ranged from (10 ~ 30) μg / dL to 50% (30 ~ 40) μg / dL; There is no gender difference in alcohol level average. CONCLUSIONS: Of the 2 81 children aged 3 to 5 years who were surveyed, there was no severe lack of vitamin A, but about one in four children were in subclinical vitamin A deficiency or inadequate intake of vitamin A