Survey of physical development in children aged 3～13 years old in Zhengzhou area

Objective To investigate the prevalence of height,weight,overweight and obesity in children from 3to 13 years old in Zhengzhou area. Methods The height,weight and body mass index were collected from 6 705 school children in Zhengzhou.By the survey data of nine provinces physical development in children in 2005,the detection rates of overweight and obesity rate were calculate,and their characteristics were analyzed. Results 1)The average of height in boys and girls was the same,and the body weight in boys was significantly higher than that in girls.2)Beside the height in boys from 9years old group was lower than the national reference,and that in boys from 13 years old group was equal to the national reference,the heights in other age groups were higher than the national reference value;the height in girls from 3~7years old group was higher than the national reference,and the heights in girls from 9and 13 years old groups were equal to national level,and the height in girls from 10 to 12age group was below the national reference.The weight in children from9 and 12years old groups were higher than the national reference value,while the weights in children from 10,11 and 13years old groups were the same as the national reference values.3)The detection rate of overweight was 12.11%,and obesity rate was 4.50%,and rates were 11.58% and 6.05%in boys,respectively,and were 7.81% and 2.64%in girls.The detection rates of overweight and obesity in boys were than those in girls. Conclusion There are low stature,overweight,obesity in children in Zhengzhou area.It is suggested that the relevant departments should pay attention to children's physical development,such as strengthen the education of publicity,enhance outdoor physical exercise,promote them good habits development.