Abstract：
The nutritional status of rural Chinese children has improved in recent years, but their nutritional knowledge is still relatively lacking. School-based nutrition and health education was conducted for children in three counties of China from 2018 to 2020. The students in the intervention schools were given two-year nutrition and health education courses, while the control schools did not receive any intervention. Students’ nutrition knowledge, dietary intake, and dietary behaviors were collected using a questionnaire, and height and weight were measured uniformly. The nutrition knowledge score in the intervention group was increased by 1.01 and 0.64 points in the first and second years. A multilevel model was used to evaluate the intervention effects. Statistically significant interactions between groups and time were observed in nutrition knowledge, the frequency of eating breakfast, and dietary intake, including meat, eggs, milk, and vegetables (p < 0.05), but not in nutritional status. Therefore, the supplementation of school-based nutrition and health education had a positive impact on the nutrition knowledge and dietary intake of rural Chinese children.
摘要：
中国农村儿童的营养状况近年来有所改善,但是他们的营养知识仍然相对缺乏。2018年至2020年，对中国三个县的儿童进行了基于学校的营养和健康教育。干预学校的学生接受了为期两年的营养和健康教育课程，而控制学校没有接受任何干预。学生的营养知识，饮食摄入量，饮食行为是用问卷收集的，身高和体重测量均匀。干预组营养知识评分在第1年和第2年分别提高1.01分和0.64分。采用多水平模型评价干预效果。在营养知识方面观察到组间和时间之间具有统计学意义的相互作用，吃早餐的频率，和饮食摄入，包括肉,鸡蛋,牛奶，和蔬菜（p<0.05），但不是营养状况。因此,补充学校营养和健康教育对中国农村儿童的营养知识和膳食摄入有积极影响。
