Abstract：Objective To study the prevalence andrisk factors ofoverweightandobesity among school-age children in Cangzhou City so as to provide guidance for controlling school-age children’s overweight and obesity.Methods In September 2015,a stratified random sampling method was used to select 1,117 school-age children from the second, third and fourth grades in 4 schools in urban districts and 4 schools in suburban districts, Cangzhou City, and all the children were enrolled in this study. Questionnaire about Elementary School Students’ Dietary Behavior and Living Habits was used to survey the incidence rate of overweight and obesity in children with different genders, grades and districts, and the correlation between overweight or obesity and nutrition knowledge, nutrition attitude, living habits was studied. Results Two hundred and sixty-six (23.81%) children were overweight or obesity, including 172 (31.16%) boysand 94 (16.64%) girls, and the incidence rate of overweight and obesity was significantly higher in boys than in girls (χ2=32.46, P<0.05). The incidence rate of overweight and obesity was significantly higher in urban children than in suburban ones (26.98% vs. 19.30%, χ2=8.79, P<0.05). No statistically significant difference was found in the incidence rate of overweight and obesity among children with different grades (χ2 =0.75, P>0.05). The scores of nutrition knowledge and nutrition attitude in normal weight children were (6.06±1.42) and (2.98±0.84) respectively, while those in overweight and obesity children were (7.43±2.15) and (2.25±0.76) respectively, and the differences were statistically significant (both P<0.05). The amount of nutrient intake and the frequency of snack intake (eating snacks every day and eating once every other day) in overweight and obesity children were significantly higher than those of normal weight children (both P<0.05). Overweight and obesity children with daily average exercise time less than 1 hour accounted for 85.71%, which was significantly higher than that of normal weight children (P<0.05), while 82.84% of normal weight children spent more than an hour exercising every day. The proportions of going toschool on foot and by private car in normal weight children were 56.76% and 15.98% respectively, while those in overweight and obesity children were 14.66% and 60.15% respectively, with statistically significant differences (both P<0.05). Conclusions Urban school-age boys in Cangzhou City are prone to overweight and obesity. Strengthening the nutrition knowledge education as well asdiet &exercise interventions palys an important role in the prevention of overweight and obesity among children.
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2017, Vol. 24 
