Trend Analysis Of Overweight And Obesity Among Primary And Secondary School Students Aged 9～18 Years During 2010-2019 In Anhui Province

Objective To analyze the trend of overweight and obesity among school students aged9 to 18 years in 2010,2014,2019 in Anhui province,which provide data for theoretical reference for future etiology research and prevention and treatment.Methods We selected samples of primary and secondary school students from Hefei,Suzhou and Chizhou in 2010,2014,and 2019 with the stratified random cluster sampling method.In the three surveys,students were classified at the same point school in the same area,stratified by grade,and cluster sampling was conducted with the teaching class as the unit.A total of 22,069 students were selected as the research objects in 3 surveys,including boys and girls aged 9-18 years old,including 7,459 in2010,8,789 in 2014,and 5,821 in 2019.Measured the height,weight and other indicators of the selected primary and secondary school students,and then calculated the body mass index（BMI）,evaluated the obesity of the primary and secondary school students according to BMI,and then use the SPSS 19.0 statistical software for statistical analysis.The chi-square test was used to compare and analyze the dynamic changes of overweight and obesity of primary and secondary school students with different demographic indicators in 2010,2014,and 2019.Results The prevalence of overweight and obesity in 2019 were 15.3% and 10.0%among 9-18 years school students in Anhui Province,respectively.The prevalence of overweight and obesity were 18.4% and 13.0% among boys,and the prevalence of overweight and obesity were 12.2% and 7.1% among girls,with the prevalence among boys exceeding girls.prevalence of overweight and obesity were 16.3% and 12.3%among urban students,and the prevalence of overweight and obesity were 14.2% and7.7% among rural students,with the prevalence among urban students exceeding rural student.The prevalence of overweight were 15.8%,14.6%,15.2%,among students aged9-12,13-15,16-18 years and the prevalence of obesity were 11.9%,9.5%,7.9%,respectively.The prevalence of overweight and obesity in the age group of 9～12 years old were the highest.The prevalence of overweight were 16.4%,15.1%,and 14.3%among students in Hefei,Suzhou,Chizhou and the prevalence of obesity were11.7%,9.2%,9.1%,respectively.During 2010-2019,the prevalence of overweight and obesity among 9-18 years school students in Anhui province increased continuously.The prevalence of overweight during 2010-2014,2014-2019 increased 0.58%,0.90% and the prevalence of obesity were 0.58%,0.94%.During 2014-2019,the increase rates of overweight in four groups of students were 0.72%,0.84%,0.92%,0.94%,respectively,and the increase rates were higher in boys and rural areas than in girls and urban areas.The increase rates of obesity in four groups of students were 1.66%,0.72%,0.82%,0.44%,respectively,and the increase rates were higher in boys and urban areas than in girls and rural areas.Conclusion The prevalence of overweight and obesity among 9 ～ 18 years school students in Anhui province increased continuously during 2010-2019.And and the increase rates of overweight and obesity were higher during 2014-2019 than during2010-2014.The increase rate of overweight in rural exceeded that in urban during2014-2019.There were gender,urban-rural and regional differences in the prevalence of overweight and obesity among 9～ 18 years school students in Anhui province in2019.