维生素A缺乏是一个全球重要的公共卫生问题。目前,我国维生素A缺乏的流行趋势以可疑亚临床型缺乏(边缘型维生素A缺乏)为主,孕妇和学龄前儿童是主要易感人群。维生素A缺乏对生命健康有极大的危害,正确及时的诊断和防治对减少这些损害非常重要,也避免了给社会带来沉重的经济负担。本课题组根据WHO和国际维生素A顾问组(IVACG)制定的维生素A诊断治疗指南,结合国内外相关研究进展,提出人群预防和个体诊治方案以供参考。 Vitamin A deficiency is a global public health problem. At present, the prevalence of vitamin A deficiency in our country with suspicious subclinical deficiency (marginal vitamin A deficiency), pregnant women and preschool children are the main predominant population. The lack of vitamin A has great harm to life and health. Correct and timely diagnosis and prevention are very important to reduce these damages and also avoid the heavy economic burden on the society. According to the guideline of vitamin A diagnosis and treatment developed by WHO and International Advisory Group of Vitamin A (IVACG), the research group proposed the population prevention and individual diagnosis and treatment plan for reference for the reference of relevant research progress at home and abroad.