[Three years follow-up study on the changes of overweight and obesity among 862 pre-school children in Beijing city].
OBJECTIVE
To study the trend of changes of overweight and obesity among pre-school children in Beijing city.


METHODS
An epidemiological survey was conducted in 10 representative kindergartens in urban Beijing. 862 children who were 3 - 4 years old in the first survey in 2000 were followed in 2001 and 2002. Anthropometric included weight and height.


RESULTS
The results from three years follow-up of 862 children indicated that the prevalence of overweight and obesity increased with the age increasing (P < 0.05). The prevalence of obesity of boys was 12.5% in 2002 which increase 8% than that in the year of 2000 (4.4%), and the prevalence of obesity of girls was 10.7% in the year of 2002 which increase 6% than that in the year of 2000 (4.2%), the increasing rate of the obesity group was fast than the normal group. 80 percent of the obesity children remained obesity during the three years and the incidence of the obesity during the normal group was lower than the overweight group.
You
Yue
Y
Institute of Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
Chen
Min
M
Zhai
Yi
Y
Yang
Zheng-Xiong
ZX
D001827:Body Height; D001835:Body Weight; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D002947:Cities; D005260:Female; D005500:Follow-Up Studies; D006306:Health Surveys; D006801:Humans; D008297:Male; D009765:Obesity / Q000453:epidemiology*; D050177:Overweight / Q000453:epidemiology*; D015995:Prevalence; D012494:Sampling Studies; D012737:Sex Factors