2012•Chinese Journal of School HealthRequires access
Secular growth trends in weight of Mongolian students aged 7-18 from 1985 to 2010
Ru Jia
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Abstract
Objective To analyze the secular changes in weight of Mongolian students aged 7 to 18 from 1985 to 2010,to provide useful states for the study on physical health condition of Mongolian students.Methods By using stratified random cluster sampling method,there were 17 480 Mongolian students aged 7-18 years old were selected in the year of 1985,2000 and 2010,to analyze the weight of the students.Results In the year of 1985,2000 and 2010,the weight of Mongolian students aged 7 to 18 was growing with the time.From 1985 to 2010,the mean weight of Mongolian students aged 7-18 increased by 8.31,5.73,5.24 and 4.54 kg.The two cross-age of weight growth curve of Mongolian students aged 7-18 was 0.5-2 years in advance.The weight growth spurt of Mongolian students aged 7-18 was 1-3 years in advance.The most growth age of the weight of Mongolian boys was advanced.Conclusion There is a significant positive secular trend in the growth of students,but there is still a gap between urban growth level and rural growth level.