关键词: 学龄前儿童, 超重, 肥胖, 检出率, 影响因素

Abstract: Objective To understand the status and effecting factors of preschool children among several cities in China,and to provide basis for obesity preventing. Methods Cluster sampling method was used and preschool children of 56 kindergartens in 9 project areas were selected,the information of children's birth date,birth weight,parents' education level,and effecting factors were collected,the children's height and weight were also obtained by measuring.χ² test and Logistic regression analysis were used in this study. Results A total of 11 960 cases were analyzed in this study,12.22% and 10.38% of the children were overweight and obesity,the prevalence of overweight was 12.67% in boys and 11.72% in girls,and the prevalence of obesity was 13.61% in boys and 6.82% in girls,the difference was statistically significant(χ²=157.52,P<0.001).Along with the age increased,the prevalence of overweight and obesity in boys increased,the difference was statistically significant(χ²=16.10,P=0.041).Preschool children in South of the Yangtze River region had higher prevalence of overweight and obesity than those in Yangtze River basin region and North of the Yangtze River region,and the difference was statistically significant(χ²=145.24,P<0.001).Boys,children birth with overweight and cesarean delivery were the risk factors for preschool children's overweight and obesity,and the risk odds ratios were 1.53(1.40,1.68),1.92(1.62,2.29) and 1.21 (1.10,1.34) respectively. Conclusions Preschool children have high prevalence of overweight and obesity in survey areas; boys,children birth with overweight and cesarean delivery are the risk factors.Obesity preventing should be start from pregnancy.

Key words: preschool children, overweight, obesity, prevalence, effecting factor