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| Malnutrition status among primary and middle school students in Yunfu City |
| HUANG Qinhai, YU Shiqun, CHEN Xiaomin, ZENG Yuqiu
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| Department of Public Health, Yunfu Center for Disease Control and Prevention, Yunfu, Guangdong 527300, China |
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Abstract Objective To investigate the nutritional status and its influencing factors among primary and middle school students in Yunfu City, Guangdong Province, so as to provide the basis for improving nutrition and health strategies for students. Methods Primary and middle school students from 26 schools in 5 counties (cities, districts) of Yunfu City were selected in 2022 through multi-stage stratified cluster random sampling method. Demographic information, dietary and exercise behaviors were collected using questionnaire surveys, and the prevalence of malnutrition were analyzed. Factors affecting malnutrition was evaluated using a multinomial logistic regression model. Results A total of 7 213 students were surveyed, including 3 881 boys (53.81%) and 3 332 girls (46.19%), and had a median age of 13.50 (interquartile range, 4.00) years. There were 2 667 primary school students (36.97%), 2 662 middle school students (36.91%) and 1 884 high school students (26.12%). There were 1 938 students suffered from malnutrition, with a detection rate of 26.87%. The detection rates for undernutrition, overweight and obesity were 11.66%, 9.75% and 5.46%, respectively. Multinomial logistic regression analysis showed that gender (boy, OR=2.227, 95%CI: 1.905-2.603), studying phase (primary school, OR=1.528, 95%CI: 1.239-1.884), ≥60 min/d of moderate/high-intensity exercise (0-1 d/week, OR=1.422, 95%CI: 1.153-1.753; 2-4 d/week, OR=1.280, 95%CI: 1.047-1.564) and frequency of having physical education (1-2 classes/week, OR=1.732, 95%CI: 1.084-2.767; 3-4 classes/week, OR=1.662, 95%CI: 1.026-2.693) were the influencing factors for undernutrition; gender (boy, OR=1.956, 95%CI: 1.656-2.311), frequency of sugary beverage intake (0 time/d, OR=0.721, 95%CI: 0.528-0.984) and frequency of having physical education (0 class/week, OR=2.087, 95%CI: 1.151-3.784; 1-2 classes/week, OR=1.644, 95%CI: 1.044-2.590; 3-4 classes/week, OR=1.685, 95%CI: 1.051-2.703) were the influencing factors for overweight; gender (boy, OR=2.459, 95%CI: 1.964-3.078) was the influencing factor for obesity among students. Conclusions Undernutrition, overweight and obesity coexist in primary and middle school students in Yunfu City. Gender, school phase, frequency of sugary beverage intake and frequency of having physical education are associated with malnutrition among primary and middle school students.
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Received: 09 January 2024
Revised: 20 March 2024
Published: 17 May 2024
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