Evaluation On The Effects Of Campus Based Nutrition Publicity And Education

Background:Childhood and adolescence are key periods in the formation of a person's eating behavior and lifestyle.With the continuous improvement of China's economic level,the nutrition and health status of primary and secondary school students have also been greatly improved,but there are still many forms of malnutrition.In 2015,the monitoring of nutrition and health status of Chinese residents showed that the growth retardation rate and weight loss rate of children and adolescents aged 6-17 years in China were 3.2%and 9.0%,respectively,while the overweight and obesity rates reached 9.6%and 6.4%.The school is the main place for students' nutrition and health education and education.Through the implementation of professional and efficient nutrition and health education,students' nutritional health is improved.In 2017,in order to promote the school-based nutrition and health promotion for children and adolescents,it was commissioned by the National Health and Family Planning Commission's Disease Control Bureau.With the support of UNICEF,the Chinese Center for Disease Control and Prevention's Nutrition and Health Institute(hereinafter referred to as the Institute for Nutrition and Health)"Nutrition Institute"organized 7 areas to carry out the "Nutrition Campus" pilot project to understand the nutrition knowledge,dietary behavior,physical activity and body shape perception before and after the intervention of primary and secondary school students,and to explore effective,scalable,school-based The comprehensive intervention mode for prevention and control of children's multiple forms of malnutrition provides basis and support for further promoting the development of nutrition education for students across the country.Objective:1.To understand the status of nutrition knowledge,dietary behavior,physical activity and body shape cognition before and after intervention in primary and secondary school students in the pilot area and the effect of intervention,analysis of its influencing factors.2.Analyze the current nutritional health problems and needs of students and schools,and form an effective comprehensive,scalable,comprehensive campus intervention program that fosters healthy lifestyles for children and prevents and controls multiple forms of malnutrition.Subjects:This study was intervention study with no control group.Sampling is performed using a stratified random cluster sampling method.Datun District,Panjin City,Liaoning Province,Xinhua District,Shijiazhuang City,Hebei Province,Huangdao District,Qingdao City,Shandong Province,Yiwu City,Zhejiang Province,Longan County,Nanning City,Guangxi Province,Zhuanglang County,Pingliang City,Gansu Province,Pujiang County,Chengdu City,Sichuan Province Questionnaires and physical examinations were conducted in the third,fifth and fifth year of elementary school students in seven districts.In each of the grades,2 classes are selected,each class is 40 to 50 people,and the men and women are basically half each,as the evaluation object.Methods:Conduct a school-based nutrition health intervention model,through interventions such as nutrition health education,physical activity promotion,scientific nutrition feeding support,and campus support environment,in March-June 2017 and January-March 2018,respectively.Questionnaires and physical measurements were taken for students.The morning height and weight of the students who participated in the assessment were assessed according to standard procedures.Data analysis was performed using SPSS 20.0.The count data is described by frequency and percentage,and the quantitative data is described by means of mean and standard deviation(x±s).Multi-factor analysis of variance was used to compare the measurement data sets,and the count data was analyzed by 2 tests.In the analysis of influencing factors,multiple linear regression analysis and multivariate logistic regression analysis were used.Results:At baseline,a total of 1,947 students participated in the survey;after the intervention,there were 1,866 students.Among the students who participated in the baseline survey,Liaoning Daxie County accounted for 13.5%,Shandong Huangdao District accounted for 13.9%,Guangxi Longan County accounted for 17.9%,Sichuan Pujiang County accounted for 7.9%,Hebei Xinhua District accounted for 14.8%,and Zhejiang Yiwu City accounted for 13.8%.Zhuanglang County in Gansu accounted for 18.2%;the central and eastern regions accounted for 56.0%;the western region accounted for 44.0%;the male students accounted for 53.0%,the female students accounted for 47.0%;the third grade accounted for 32.9%,the fifth grade accounted for 35.6%,and the seventh grade accounted for 31.5%.1.Nutrition knowledge of studentsAt baseline,the correct rate of 8 nutrition knowledge points of students was 4.8%84.4%;the correct rate after intervention was 13.1%90.0%,and the correct rate of nutrition knowledge points was 5.6%-20.7%,8 nutrition knowledge points The correct rate was statistically significant over time(P<0.01).At baseline,the student's nutritional knowledge score(ten system)was 3.6 points,and after intervention,it was 5.0 points.The nutritional knowledge scores after intervention were higher than the baseline level,and the differences in nutritional knowledge scores before and after intervention were statistically significant(P<0.01).As the intervention time prolonged,the higher the nutritional knowledge scores of the upper grade students,the higher the nutrition knowledge score of the students in the western region was higher than that in the central and eastern regions.2.Students' dietary behaviorsAfter intervention,students' consumption of meat a week frequency,obviously increase the kinds of every day to eat vegetables,meat consumption of frequency and types of vegetables every day.Every week from the baseline survey in 4.2,3.7times,increased to 4.6,4 times,respectively before and after the intervention had statistical significance(P<0.05),of which the proportion of meat to eat at least once a day increased by 1.8%,and a day to eat at least a vegetable ratio increased by 4.5%;The consumption frequency of eggs and milk per week and the variety of fruits per day were not significantly increased,and there was no statistical significance before and after the intervention(P>0.05).After the intervention,the number of breakfast and the types of breakfast food per week were significantly increased.The frequency of breakfast increased from 6.2 days per week in the baseline survey to 6.3 times per week.The number of breakfast foods increased from 2 at baseline to 2.3 after intervention.The comparison before and after intervention was statistically significant(P<0.05).After the intervention,the proportion of having breakfast every day increased by 9.4%,and the proportion of having more than 3 kinds of breakfast foods increased by 11.2%.The comparison before and after the intervention was statistically significant(P<0.01).Regional,gender,grade,and nutritional k:nowledge scores affected the frequency of breakfast and all kinds of food intake before and after the intervention(P<0.05).The monthly consumption of western fast food decreased from the baseline of 1.3 times to 1.1 times,and the comparison before and after the intervention was statistically significant(P<0.05).Before and after the intervention,the number of snacks per week before and after the intervention was not statistically significant(P>0.05).3.Students' physical activitiesAfter intervention,the daily exercise time of students increased from 45.5 minutes to 50.9 minutes at baseline,and the difference was statistically significant before and after intervention(P<0.05).After the intervention,the proportion of students moving more than 60 minutes increased by 3.4%.There was no significant difference in the screen time between the students before and after the intervention(P>0.05).High nutritional knowledge scores,boys in the central and eastern regions exercise longer hours.4.Students' body shape cognitionAfter intervention,the student's self-recognition score increased from 3.7 points to 3.8 points.After the intervention,the normal proportion of students' body shape recognition increased by 5.7%.The difference between the two groups was statistically significant(P<0.05).Male students in the middle eastern economic zone and the 7th grade of Dawa County,Liaoning Province have a higher proportion of normal self-recognition.There was no significant difference in the body shape satisfaction and ideal body shape between the students before and after the intervention(P>0.05).Conclusion:Through school-based nutrition education,students 'nutritional knowledge has been improved,dietary behavior has changed,and physical activity has been increased,but screen time has not been reduced.Time of intervention,district,grade,gender and economic development are the main factors influencing students 'nutritional knowledge and physical activity.Nutritional knowledge scores affect students 'various dietary behaviors.