中国西部6省（区）贫困农村5岁以下儿童维生素A缺乏状况分析

Analysis on the status of vitamin A deficiency among children under 5 years old in poor rural areas of 6 Western Chinese provinces in 2009

目的分析中国西部6省（区）贫困农村5岁以下儿童维生素A缺乏状况。方法利用科技支撑项目“贫困农村地区儿童营养缺乏改善适宜技术的研究”资料中2091名5岁以下儿童测定血浆维生素A水平。应用SAS软件进行统计分析。结果2009年中国西部6省（区）农村5岁以下儿童维生素A缺乏率为20．2％，男童20．6％，女童19．7％。其中，甘肃省5岁以下儿童维生素A缺乏率最高为25．5％，广西区最低为12．2％。6～11月龄儿童的维生素A缺乏率最高，以后维生素A缺乏率随着儿童月龄的增加而下降。结论中国西部6省（区）贫困农村5岁以下儿童维生素A属于重度缺乏。在加强合理喂养的宣传教育同时，应提供辅食营养补充品（营养包），降低维生素A缺乏率。

Objective To analyze the status of vitamin A deficiency among children under 5 years old in poor rural areas of 6 Western Chinese provinces in 2009. Methods The study subjects involved 2091 children from a program- ‘Appropriate measurements in improving children undernutrition in poor rural areas ＇. Results In 2009, prevalence of vitamin A deficiency among children under 5 years old from the poor rural areas of 6 westem Chinese provinces was 20.2%, with boys as 20.6% and girls as 19.7%. Prevalence rates of vitamin A deficiency among children under 5 years old in the highest and lowest areas were seen in Gansu （25.5%） and Guangxi （12.2%） provinces, respectively. The peak of vitamin A deficiency prevalence fell in the 6-11 months age group. The prevalence of vitamin A deficiency declined along with the increase of age. Conclusion Results from this study demonstrated that vitamin A deficiency among children under 5 years old appeared to be a serious public health problem in the poor rural areas of 6 Westem Chinese provinces. Education on reasonable ways of feeding and provision of complementary nutrients to children with vitamin A deficiency, should be the key points in the prevention and control programs on this problem.