CAJ | 학술논문

目的：评价城市居民维生素A营养状况。方法在浙江2城市按多阶段整群随机抽样方法，抽取400名居民，通过问卷调查和3天24小时膳食调查法、体格检查和血样采集检测血清维生素A水平，采用维生素A每日推荐摄入量（ RNI）来评价维生素A膳食摄入状况，分析城市居民维生素A营养状况及其影响因素。结果城市居民维生素A水平中位数为0.463（0.213）μg/mL，维生素A高度缺乏的占0.25%、缺乏的占0.50%、不足的占6.75%、充足的占92.50%。299人参与了膳食调查，每日维生素 A摄入量的中位数为350.5（351.5）μgRE；平均每日维生素A摄入量低于60%RNI的占61.87%，仅有25.42%的人摄入量在80%RNI以上。男性、大城市、年龄较大、血清甘油三酯水平较高及膳食胆固醇摄入较高的居民其血清维生素A水平较高。结论城市居民血清维生素A较为充足，但维生素A膳食摄入状况仍有待改善。年龄、性别、地区等因素影响血清维生素A水平。
목적：평개성시거민유생소A영양상황。방법재절강2성시안다계단정군수궤추양방법，추취400명거민，통과문권조사화3천24소시선식조사법、체격검사화혈양채집검측혈청유생소A수평，채용유생소A매일추천섭입량（ RNI）래평개유생소A선식섭입상황，분석성시거민유생소A영양상황급기영향인소。결과성시거민유생소A수평중위수위0.463（0.213）μg/mL，유생소A고도결핍적점0.25%、결핍적점0.50%、불족적점6.75%、충족적점92.50%。299인삼여료선식조사，매일유생소 A섭입량적중위수위350.5（351.5）μgRE；평균매일유생소A섭입량저우60%RNI적점61.87%，부유25.42%적인섭입량재80%RNI이상。남성、대성시、년령교대、혈청감유삼지수평교고급선식담고순섭입교고적거민기혈청유생소A수평교고。결론성시거민혈청유생소A교위충족，단유생소A선식섭입상황잉유대개선。년령、성별、지구등인소영향혈청유생소A수평。
Objective To evaluate the nutritional status of vitamin A among urban residents. Methods Using stratified random sampling method,a total of 400 residents from two cities in Zhejiang were selected. They were interviewed by questionnaire,also, the dietary survey, physical measurement and blood sample testing were used. According to Recommended Nutrient Intake( RNI)of vitamin A,to evaluate the intake of Vitamin A and analysis the nutritional status and influenc factors. Results The median of vitamin A concentration was 0. 463( inter-quartile range is 0. 213)μg/mL, and the percentage of severe vitamin A deficiency( VAD ),VAD,insufficiency and adequate serum vitamin A were 0. 25%,0. 50%,6. 75% and 92. 50% respectively. Among 299 individuals who participated in the dietary survey,the median of daily vitamin A intake was 350. 5( inter-quartile range was 351. 5)μgRE. Only 25. 42% of participants' dietary intake of vitamin A met the level of 80% RNI,while 61. 87% of peoples' daily intake of vitamin A under 60%RNI. Male, from the bigger city,older age,high level of triglyceride and more intake of cholesterol may contribute to a higher level of serum vitamin A. Conclusion The majority of urban residents had adequate vitamin A . But the intake of dietary vitamin A still should be paid more attention. Serum vitamin A was associated with age,gender and district.