Association between dietary quality and overweight / obesity among primary school students
HE Yiyang1, WANG Bilian2, ZHANG Pingping2, LI Li1
1. The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China; 2. Ningbo Art Experimental School, Ningbo, Zhejiang 315000, China
Abstract：Objective To investigate the association between dietary quality and overweight / obesity among primary school students, so as to provide a basis for the prevention and control of childhood obesity. Methods In September 2022, third-grade students from six primary schools in Ningbo City, Zhejiang Province were selected by a random cluster sampling method. Data on gender, age, height, and weight were collected through questionnaire surveys and physical examinations. Body mass index (BMI) was calculated, and overweight and obesity were determined using gender- and age-specific BMI cut-off points. The Chinese dietary quality questionnaires was administered to assess the intake of health-promoting and restricted foods over the past 24 hours, thereby evaluating overall dietary quality. A multivariate logistic regression model was used to analyze the association between dietary quality and overweight / obesity among primary school students. Results A total of 1 375 primary school students were included, comprising 722 (52.51%) boys and 653 (47.49%) girls, with a mean age of (8.47±0.30) years. Among them, 165 (12.00%) were overweight and 171 (12.44%) were obese. The score for health-promoting foods was (4.29±2.27) points. The median score of restricted foods was 2.00 (interquartile range, 3.00) points. The total dietary quality score was (10.84±2.42) points. Multivariable logistic regression analysis indicated that the restricted food score was positively associated with overweight (OR=1.073, 95%CI: 1.002-1.148), while the total dietary quality score was negatively associated with overweight (OR=0.911, 95%CI: 0.851-0.976). However, no statistically significant associations were observed between the health-promoting food score and overweight or obesity (both P>0.05), nor between the restricted food score or total dietary quality score and obesity (both P>0.05). Conclusion A higher intake of restricted foods was associated with an increased risk of overweight, while a better dietary quality was associated with a decreased risk of overweight among primary school students.
何易阳, 王碧莲, 张萍萍, 励丽. 膳食质量与小学生超重肥胖的关系研究[J]. 预防医学, 2025, 37(11): 1099-1102.
HE Yiyang, WANG Bilian, ZHANG Pingping, LI Li. Association between dietary quality and overweight / obesity among primary school students. Preventive Medicine, 2025, 37(11): 1099-1102.
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