Nutritional improvement status of primary and secondary school students in the pilot nutrition improvement areas of Hainan, China from 2014 to 2021

Author:

Liu Di-yue1,Zhang Fan2,Zhang Yan-ming3,Wu Yu-ting4,Lu Jing-jing1,Dong Chun-bo5,Xiao Ying-chen6,Xiao Xiao-yu1,Zhang Jia-qing1,Feng Qi-qin1

Affiliation:

1. Hainan Medical University,International School of Public Health and One Health

2. Hainan Medical University

3. Macau University of Science and Technology

4. North China University of Science and Technology

5. Danzhou Disease Control and Prevention Center

6. Tianjin Medical University

Abstract

Abstract Objective: In 2013, Hainan Provincial Government launched the pilot project of the “Nutrition Improvement Program for Rural Compulsory Education Students” (NIPRCES) in Qiongzhong County. The study aims to provide a more scientific basis for subsequent program implementation by monitoring the nutritional status of students in the course of the nutrition improvement program. Design: It has been monitoring the nutritional health of students in the pilot area annually since 2014. Multi-stage sampling was used to select 6 each for primary and secondary schools. The Cochran Armitage trend test (CATT), χ2 test and Bonferroni correction were used to analyze the data. Setting: China Participants: 18,762 participants aged 6~15 in Hainan Provence Qiongzhong County, China Results: In 2014-2021, the average height of both boys and girls has increased. The prevalence of undernutrition showed a significant downward trend (P<0.05) decreasing by 7.11%, and the prevalence of overnutrition showed an upward trend (both P< 0.05) rising by 2.86% and 2.74%, respectively. There was a downward trend in the prevalence of undernutrition among students in all grades (all P< 0.05), and a significant upward trend in obesity among students in grades 1-6 (all P< 0.05). For all students, the prevalence of undernutrition in Li students showed a downward trend (P<0.05), and the prevalence of obesity in Han, Li, and other ethnic minorities showed an upward trend (all P < 0.05). Conclusions: After implementing the NIPRCES, the prevalence of malnutrition among students has declined. However, their prevalence is still high, while the overnutrition prevalence is rising.

Publisher

Research Square Platform LLC

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