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目的 :了解城乡儿童核黄素营养状况。方法 :对城市 40名及农村 51名 1 0～ 1 2岁小学生采用 4小时尿负荷实验法检测其体内核黄素水平 ,并以问卷方式调查日常饮食情况。结果 :城市学生核黄素不足和缺乏的人数占被测人数的 37.50 % ,乡村占 68.63 % ,两者差异有显著性意义 (P <0 .0 1 )。城乡儿童核黄素人均日摄入量分别占RDA的 74.68%和 55 .86 %。膳食调查显示城市儿童在肉类、乳类方面摄入高于农村儿童 ,差异有显著性意义 (P <0 .0 1 )。烹调过程中 ,乡村居民较城市居民更喜欢在食物中加碱 (P <0 .0 5)。结论 :城乡儿童核黄素营养水平普遍较低 ,农村更为严重 ,其中动物性食品摄入量较少及烹调方法不合理是核黄素摄入不足的主要原因
Objective: To understand the nutritional status of children in urban and rural areas of riboflavin. Methods: Forty pupils in city 40 and rural areas were enrolled in this study. Four hours urinary load test was used to detect the levels of riboflavin in 40 urban and rural primary school students aged from 10 to 12 years old. The daily diet was investigated by questionnaire. Results: The number of urban students with deficient and deficient riboflavin accounted for 37.50% of the surveyed population and the rural area accounted for 68.63%. There was a significant difference between the two groups (P <0.01). Per capita daily intake of riboflavin in urban and rural children accounted for 74.68% and 55.86% of the RDA respectively. Dietary surveys show that urban children’s intake of meat and milk is higher than that of rural children, with significant differences (P <0.01). In the process of cooking, rural residents prefer to add alkali to food more than urban residents (P <0.05). Conclusion: The prevalence of riboflavin in urban and rural children is generally low and the rural areas are more serious. The less intake of animal food and the improper cooking method are the main reasons for the inadequate intake of riboflavin