汉川市农村留守学童营养状况及其影响因素调查-公共卫生与预防医学专业论文.docxVIP

万方数据 万方数据 Abstract Objective: To understand the nutrition status of rural left-behind school-children in Hanchuan city and explore its effective factors, in order to provide scientific basis for developing targeted strategies and measures to improve the trophic status of rural left-behind school-children. Methods: All students of Grade 4~6 were selected from two rural central primary schools in Hanchuan city as investigation objects by cluster sampling method including left-behind children and non-left-behind children. The dietary nutrition intakes of all students were obtained by a modified 3 consecutive 24-hour recalls, and physical measurements and blood biochemical examination were carried out at the same time. By using a questionary, the family status of left-behind students and the nutrition knowledge-attitude-practice (KAP) level of school-children guardian were surveyed. Results: The study surveyed 515 rural students included 248 left-behind children and 267 non-left-behind children. There were many problems exited in rural left-behind school-children. The dietary nutrition intakes were not ideal in left-behind students with a veggie-riched diet structure in which the animal food and the bean and bean products were defect. The rates of inadequate intake of energy and protein were 62.9% and 73.8% respectively, and the calorie intake from dietary fat only accounted for 14.2% of total energy source and the ratio of breakfast was 22.5% in three meals a day of the energy distribution ratio. Furthermore, the intakes of micronutrients such as calcium, zinc and vitamin A were also insufficient and all those inadequate percentages have reached more than 80%. But compared with non-left-behind children, no significant statistical differences between them except that the intakes of dietary iron and zinc in left-behind children were obviously more than that of non-left-behind children (P0.05). Besides, the incidence rates of growth retardation, athreps