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目的 了解安徽省 0～ 5岁儿童维生素A水平 ,分析其影响因素 ,为我省制定预防控制维生素A缺乏的措施提供科学依据。方法 分层随机抽取安徽省 1市 4县 1 0 5 2名 6岁以下儿童 ,以微量荧光法测定其血清维生素A含量 (SROL)来评价儿童体内维生素A状况 ,采用问卷收集其家庭、喂养和膳食等相关因素。结果 安徽省 0～ 5岁儿童血清维生素A平均值为 30 .36± 7.94 μg/dl,与 2 0 0 0年全国调查的平均水平相当。儿童血清维生素A水平在城乡之间和农村地区间比较有显著性差异。儿童SROL平均水平随所在家庭年人均收入的增高、母亲受教育程度的增高、父母收入等级增加以及儿童年龄的增长而增加。混合母乳喂养的儿童SROL水平最低 ;儿童摄入富含维生素A食物频率增加 ,其SROL也随之增加 ;服用维生素A制剂的儿童SROL高于未服用者。逐步多元线性回归分析结果显示 ,儿童居住在农村、仍在吃母乳、家庭子女多、母亲为农民、父亲学历低等因素可导致SROL水平的降低。结论 血清维生素A水平受多因素影响。提高母乳中维生素A含量 ,推广科学喂养知识 ,给儿童及时添加富含维生素A食物 ,必要时添加维生素A制剂可能较有效提高儿童维生素A的水平
Objective To understand the level of vitamin A in children aged 0 ~ 5 in Anhui Province and analyze its influencing factors, so as to provide a scientific basis for the prevention and control of vitamin A deficiency in our province. Methods A total of 105 children under 6 years of age were enrolled in 4 counties in 1 municipality of Anhui Province. The level of vitamin A in children was assessed by micro-fluorescence spectroscopy (SROL). The questionnaire was used to collect the data of family, Diet and other related factors. Results The average level of serum vitamin A in children aged 0 ~ 5 in Anhui Province was 30.36 ± 7.94 μg / dl, which was comparable with the national average of 2000. Serum vitamin A levels in children between rural and urban areas and rural areas were significantly different. The average level of children’s SROL increases with the annual per capita income of the family, the increase in the education of mothers, the increase in the income level of parents, and the increase in the age of children. Children with mixed breastfeeding had the lowest levels of SROL; children with increased intake of vitamin A-rich foods had an increased SROL; children with vitamin A supplementation had higher levels of SROL than non-users. The results of stepwise multivariate linear regression analysis showed that children living in rural areas were still breastfed, with many children and mothers as their peasants. The low level of their father’s education led to the decrease of SROL. Conclusion The level of serum vitamin A is influenced by many factors. Improve the content of vitamin A in breast milk, popularize scientific feeding knowledge, add vitamin A food to children timely, and if necessary, add vitamin A preparation may be more effective in raising the level of vitamin A in children