论文部分内容阅读
目的了解吉林市9～12岁不同乳房发育分期女生营养摄入状况,为营养干预措施的制定提供依据。方法整群随机抽取吉林市小学9～12岁健康女生357名为研究对象,用Tanner\'s分期问卷评价女生性成熟度,使用膳食记录问卷进行3 d膳食调查。结果不同乳房发育分期女生平均每日能量摄入量分别为1 682.51,734.5和1 617.1 kcal(1 kcal=4.184 kJ),差异有统计学意义(F=6.59,P<0.01),达营养素推荐摄入量(RNI)的84.86%,83.84%和75.01%;蛋白质平均每日摄入量分别为62.89,61.41和53.73 g,差异有统计学意义(F=5.33,P<0.01),占总能量的14.32%,13.69%和12.91%。女生营养素平均每日摄入量占参考摄入量的百分比随着性发育而下降。不同乳房发育分期女生营养充足比<0.7的营养素均为钙、锌和维生素A。结论吉林市9～12岁女生营养摄入量随着性发育程度逐渐下降,应采取合理的综合干预措施改善膳食营养状况。
Objective To understand the nutritional intake of female students with different stages of breast development from 9 to 12 years old in Jilin City and to provide basis for the formulation of nutritional interventions. Methods A total of 357 healthy girls aged 9 ~ 12 years old from primary school in Jilin City were randomly selected as study subjects. Tanner\'s staging questionnaire was used to evaluate the sexual maturity of the girls. The dietary questionnaire was used to investigate the 3-day diet. Results The average daily energy intake of girls with different stages of breast development were 1 682.51, 734.5 and 1 617.1 kcal (1 kcal = 4.184 kJ), respectively, with significant differences (F = 6.59, P <0.01) (84.86%, 83.84% and 75.01%) of RNI, respectively. The average daily intake of protein was 62.89, 61.41 and 53.73 g respectively, with significant difference (F = 5.33, P <0.01) 14.32%, 13.69% and 12.91% respectively. The average daily nutrient intake for girls as a percentage of the reference intake declines with sexual development. Different breast development staging girls nutrient adequacy ratio <0.7 nutrients are calcium, zinc and vitamin A. Conclusion The nutritional intake of 9 ~ 12-year-old girls in Jilin City gradually decreases with the degree of sexual development. Therefore, a reasonable comprehensive intervention should be taken to improve the nutritional status of the diet.