Analysis of Overweight and Obesity Trends and BMI Variation among Children and Adolescents Aged 6-15 Years:Based on the Centralized Distribution of Food Material System
Analysis of Overweight and Obesity Trends and BMI Variation among Children and Adolescents Aged 6-15 Years:Based on the Centralized Distribution of Food Material System
Background The prevalence of overweight and obesity among children and adolescents is continuously rising.As countries have developed several school-based nutrition policies to control overweight and obesity,it is important to examine the effectiveness of nutrition policies.Objective To evaluate the effect of the centralized distribution of food material system on overweight and obesity rates among children and adolescents aged 6-15 years.Methods In April 2023,a total of 104 749 BMI data from sixteen schools aged 6 to 15 years(8 schools were included in the unified food distribution system and recorded as the unified distribution group,and 8 schools were not included in the unified food distribution and supply system and recorded as the non-unified distribution group)in Wuxi were retrospectively collected between 2017 and 2021.The data of physical examination was collected from Student Health Monitoring System in Jiangsu Province.The overweight and obesity epidemiologic trends among children and adolescents were analyzed from 2017 to 2021 in Wuxi,and the changes in BMI-Z scores and trends in overweight and obesity rates among children and adolescents were compared before and after the implementation of the centralized distribution of food material system by the Joinpoint regression and grey GM(1,1)model.Results The prevalence of overweight and obesity among in children and adolescents aged 6-15 years was increasing from 2017 to 2021.The results of the Joinpoint regression analysis indicated that the prevalence of overweight(APC 1.8%vs 4.6%)and obesity(APC 6.9%vs 13.3%)among students included in the system exhibited a slower rate of increase than among those not included.The disparity in the increase of BMI-Z scores among students included in the system and those not included changed from-0.055(95%CI=-0.108--0.002)to-0.195(95%CI=-0.246--0.145)before and after the implementation of the system.The results of grey GM(1,1)model showed that the incidence rate of overweight among children and adolescents in Wuxi in 2022,2023 and 2024 was 22.02%,22.39%and 22.77%respectively,with the incidence rate of overweight being 17.02%,18.50%and 20.12%respectively.Conclusion The increasing trend in the prevalence of overweight and obesity,as well as the increase in BMI-Z scores among children and adolescents,has slowed down after the implementation of the centralized distribution of food material system.The system may be an effective method of improving the nutritional status of children and adolescents.Therefore,it is recommended that the centralized distribution of food material system still needs to be implemented and the monitoring area needs to be expanded.
关键词
肥胖/超重/食材统一配供体系/儿童青少年/体质指数Z指数
Key words
Obesity/Overweight/The centralized distribution of food material system/Children and adolescents/BMI-Z
维普
万方数据