城乡婴幼儿维生素B_1、维生素B_2和烟酸机体营养状况分析

目的了解城市和农村地区婴幼儿维生素B1(VB1)、维生素B2(VB2)和烟酸的机体营养状况及其差异,为制定婴幼儿营养干预措施提供依据。方法抽取山东省某市0～3岁婴幼儿106名,农村0～3岁婴幼儿290名。取婴幼儿晨尿40ml,采用荧光法测定尿液中VB1、VB2和烟酸的含量。结果城市婴幼儿VB1、VB2和烟酸偏低和不足的百分比分别为1.9%、8.0%和9.1%,农村分别为4.5%、56.7%和27.1%。城乡婴幼儿机体VB1含量的中位数分别是495.00和420.56μg/g,其中12月～和24月～组城市高于农村(P<0.05)。城乡婴幼儿机体VB2含量的中位数为303.07和70.88μg/g,各年龄组婴幼儿VB2城市均高于农村(P<0.05)。城市及农村婴幼儿机体烟酸含量的中位数分别为6.31和4.22mg/g,其中6月～组、12月～组、18月～、24月～组婴幼儿烟酸含量存在城乡差异,城市高于农村(P<0.05)。结论城市和农村地区婴幼儿VB1、VB2和烟酸机体营养状况城乡差异显著,且城市均好于农村,农村地区VB2和烟酸缺乏比例较高。

Investigation of vitamin B1, vitamin B2 and niacin levels among children aged 0-3 years old in Chinese urban and rural areas

Objective To study the nutritional status and differences in vitamin B 1,vitamin B 2 and niacin of the urban / rural infants in Shandong Province,and to provide scientific basis for infants nutrition interventions.Methods 106 urban infants and 290 rural infants were selected from a city in Shandong Province.Forty milliliter urinary was collected from each one,which was adjusted to pH 4-5 with concentrated hydrochloric acid immediately.The concentration of thiamine,riboflavin and niacin in the urine was detected by fluorescence method.Results The insufficient percentages of vitamin B 1,vitamin B 2 and niacin in urban infants were 1.9%,8.0% and 9.1%,and that in rural infants were 4.5%,56.7% and 27.1%.The median concentrations of vitamin B 1 in urban and rural infants were 495.00 and 420.56μg / g respectively,in which the 12-month and 24-month groups in urban were higher than that in rural(P < 0.05).The medians of vitamin B 2 content in urban and rural infants were 303.07 and 70.88μg / g,and the content of vitamin B 2 in urban infants was higher than that in rural infants in each group(P < 0.05).The median concentrations of niacin content in urban and rural infants were 6.31 and 4.22μg / g,and the niacin content of 6month-、12month-、18month-and 24month-groups in urban infants were higher than that in rural infants(P < 0.05).Conclusion There were significant differences in vitamin B 1,B 2 and niacin content of infants between urban and rural areas,and the nutriture of urban infants was better than the rural infants.More improvement measures should be given to infants in rural areas for the high proportion of vitamin Band niacin deficiency.