Trends in the Prevalence of Overweight and Obesity among Chinese Preschool Children from 2006 to 2014Reportar como inadecuado




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Objective

To examine the trends in the prevalence of overweight and obesity among preschool children from 2006 to 2014.

Methods

A total of 145,078 children aged 3–6 years from 46 kindergartens finished the annual health examination in Tianjin, China. Height, weight and other information were obtained using standardized methods. Z-scores for weight, height, and BMI were calculated based on the standards for the World Health Organization WHO child growth standards.

Results

From 2006 to 2014, mean values of height z-scores significantly increased from 0.34 to 0.54, mean values of weight z-scores kept constant, and mean values of BMI z-scores significantly decreased from 0.40 to 0.23. Mean values of height z-scores, weight z-scores, and BMI z-scores slightly decreased among children from 3 to 4 years old, and then increased among children from 4 to 6 years old. Between 2006 and 2014, there were no significant changes in prevalence of overweight BMI z-scores >2 SD and obesity BMI z-scores >3 SD among 3–4 years children. However, prevalence of obesity BMI z-scores >2 SD increased from 8.8% in 2006 to 10.1% in 2010, and then kept stable until 2014 among 5–6 years children. Boys had higher prevalence of obesity than girls.

Conclusions

Mean values of BMI z-scores decreased from 2006 to 2014 among Chinese children aged 3–6 years old due to the significant increase of height z-scores. Prevalence of obesity increased from 2006 to 2010, and then kept stable until 2014 among children aged 5–6 years. The prevalence of obesity was higher in boys than in girls.



Autor: Yanyu Xiao, Yijuan Qiao, Lei Pan, Jin Liu, Tao Zhang, Nan Li, Enqing Liu, Yue Wang, Hongyan Liu, Gongshu Liu, Guowei Huang , Gang

Fuente: http://plos.srce.hr/



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