关键词: 四川省, 中小学生, 身高, 体重, 超重, 肥胖

Abstract: Objective To understand the morphological changes of primary and secondary school students aged 7-18 in Sichuan province in 2018 and 2014,so as to provide basic data for the changes in overweight and obesity among primary and secondary school students in the past five years. Methods Cluster sampling was used in this survey.A total of 28 754 primary and secondary school students aged 7 to 18 were selected in 2018 and 2014.Among them,23 977 primary and middle school students were selected in 2018,4 777 primary and secondary school students were selected in 2014.The height and weight of the students were measured,and body mass index (BMI) was calculated for analysis of overweight and obesity. Results There was no statistically significant difference on average height and average weight between 2018 and 2014 (P>0.05).The detection rate of overweight male students in 2018(12.87%) was slightly lower than that in 2014(14.79%),and the difference was statistically significant (P<0.05).The detection rate of obesity female students in 2018(6.44%) was higher than that in 2014(4.58%),and the difference was statistically significant (P<0.05). Conclusions There has been no significant change in the average height and weight of primary and middle school students in Sichuan Province over the past five years.The detection rate of overweight among male students decreases,and the detection rate of obesity among female students increases.To control the rapid increase in obesity among girls in primary and middle school students in Sichuan Province,improving dietary structure and taking part in more physical activities are encouraged.

Key words: Sichuan Province, primary and secondary school students, height, weight, overweight, obesity