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| Milk and dairy intake of primary and middle school students in Tongzhou District |
| HUANG Chunyu, LIU Bo, JIANG Nan
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| Department of Nutrition and Food Hygiene, Tongzhou District Center for Disease Control and Prevention,Beijing 101100,China |
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Abstract Objective To understand the current situation and influencing factors of milk and dairy intake among primary and middle school students in Tongzhou District, Beijing, so as to provide the reference for the intervention of milk and dairy intake among primary and middle school students. Methods The stratified cluster sampling method was used to randomly select the students from the third to sixth grades of primary school, three grades of junior middle school and three grades of senior high school from downtown and township of Tongzhou District as the survey objects. The demographic information, family data, and milk and dairy intake of a week before were collected. Taking the average daily intake of 300 g milk and dairy as the standard (the Chinese Dietary Guidelines 2016), the multivariate logistic regression model was used to analyze the influencing factors for reaching the standard of average daily milk and dairy intake among the students. Results A total of 804 questionnaires were sent out, and 771 valid questionnaires were received, with a recovery rate of 95.90%. There were 321 primary school students, accounting for 41.63%; 228 junior high school students, accounting for 29.57%; and 222 high school students, accounting for 28.80%. The intake rate of milk and dairy products was 90.92%, and the adverse reaction rate was 10.12%. The daily intake rate was 36.71%. The median daily intake was 214.29 g, and the rate of average daily intake reaching the standard was 28.02%. The multivariate logistic regression results showed that primary school students (OR=1.672, 95%CI: 1.102-2.535), middle school students (OR=2.086, 95%CI: 1.349-3.225), overweight (OR=1.747, 95%CI: 1.131-2.700), obesity (OR=2.469, 95%CI: 1.698-3.591), and parents with bachelor's degree or above (OR=1.760, 95%CI: 1.022-3.029) were the influencing factors for reaching the standard of average daily milk and dairy intake among the students. Conclusions The average daily intake of milk and dairy products of primary and middle school students in Tongzhou District does not reach the recommended standard, and grade, body mass index and parents'education level were the influencing factors.
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Received: 05 July 2021
Revised: 06 August 2021
Published: 05 November 2021
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