Status and differences of diet nutrition among rural boarding schools in the economically-developed areas in China

Objective To survey the status of diet nutrition among rural boarding schools in the economically-developed areas in China,and provide references for making reasonable nutritional intervention measures.Methods Multi-stage cluster sampling was used.Three hundred and eighty-seven students were arranged to select from rural boarding schools,87 form Beijing,89 from Shanghai and 211 from Guangdong.The method of 3 days dietary recall was used,and the records of kitchens and samples were collected via questionnaires.Chi-square test and ANOVA were used to analyze the intake of food and nutrient in each group.Results The daily intake of grain in Beijing group was (255.41± 159.86) g,higher than that of Shanghai and Guangdong(P<0.05).The daily intake of vegetable in Shanghai group was (113.60±63.08) g,lowest among the three groups(P<0.05),while the intake of sweets was the highest(P<0.05).The highest ratios of reaching standards of energy and protein were in Shanghai group,reaching 97.75%(P<0.05) and 80.90%(P<0.05).There was statistical significance of the differences among students about other indicators.Conclusion Inadequate nutrient supplying maybe exists in the rural boarding schools in the suburb of the three cities.Thus we should fulfill the relative national policies,promote the balance of the nutrition supplying in schools,and enrich the boarding students' knowledge of nutrition to improve the status of nutrition among these groups evidently.