Abstract:

Objective To investigate the nutritional literacy level and influencing factors of school-age children in Chaoyang District of Beijing City，and provide reference for improving their nutritional health level. Methods From April to June 2023，school-age children in Chaoyang District of Beijing City were selected as the survey subjects by multi-stage stratified cluster sampling. The health and nutrition status of students and their parents were investigated by questionnaire survey，and the information of students' routine physical examination was collected. SPSS 29.0 statistical software was used for data processing and analysis，and the binary logistics regression model was used to analyze the influencing factors of nutritional literacy. Results Finally，605 groups of valid questionnaires of students and their corresponding parents were obtained. The mean comprehensive score of students' nutritional literacy was（69.02±9.58）points，and the qualification rate was 23.80%. Grade，family food environment，daily outdoor activity time，BMI，and screen entertainment time were all influencing factors of nutritional literacy（all P<0.05 ）. Senior grade（grades 7-9：OR=2.743， 95%CI：1.687-4.460； grade 10-12：OR=2.942， 95%CI：1.748-4.953 ） ， healthier family food environment（ OR=1.735， 95%CI：1.146-2.626 ） and daily outdoor activity time ≥1 hour（ OR=1.738， 95%CI：1.187-2.679） were protective factors for the nutritional literacy of school-age children in Chaoyang District. Overweight and obesity（OR=0.524，95%CI：0.322-0.855） and daily screen entertainment time ≥2 h（OR=0.325，95%CI：0.151-0.696） were risk factors for the nutritional literacy of school-age children. Conclusion The nutritional literacy rate of school-age children in Chaoyang District is relatively high，especially in the dimensions of knowledge and concepts，but the literacy levels in each dimension are uneven. We should focus on cultivating students' transformation from nutritional knowledge concepts to the ability to choose，make and consume food.Strengthen education and practice，explore the establishment of a "five-in-one" collaborative model involving the government，professional institutions，schools，families and communities to improve students' nutritional literacy and ensure nutritional health.

Key words: Nutritional literacy, Influencing factors, School-age children, Family food environment