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| Association between poor visual acuity and nutritional status of middle school students in Urumqi |
| ZUO Zehua1, LI Shulin2, LI Junhui1, HAO Haiya1, WANG Qian1 |
| 1. School of Public Health, Xinjiang Medical University, Urumqi 830011, Xinjiang Uygur Autonomous Region, China; 2. Urumqi Center for Disease Control and Prevention, Urumqi 830026, Xinjiang Uygur Autonomous Region, China |
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Abstract Objective To investigate the association between poor visual acuity and nutritional status in middle school students in Urumqi, and provide a reference basis for parents, schools, and society to carry out myopia prevention and control of adolescents. Methods From December 2021 to January 2022, 2 001 students aged 11-18 years in Urumqi were selected by stratified whole-group random sampling for a questionnaire survey, which included a general demograhic questionnaire and a Chinese version of physical activity questionnaire for adolescents. A single-factor analysis of the influencing factors of middle school students’ visual acuity was carried out, and the correlation between visual acuity and nutritional status was explored by using a binary Logistic regression model. Results In middle school students of Urumqi, the rate of poor visual acuity, overweight and obesity rates of boys, overweight and obesity rates of girls, and rates of poor visual acuity in studerts with overweight and obesity were 69.7%, 19.7%, 9.6%, 9.5%, 2.3%, 71.8% and 78.1%, respectively. There was asignificant difference in the detection of poor visual acuity between male and female students（χ2=10.42, P<0.05）. The detection rate of poor vision in the overweight female group was significantly higher than that in the overweight male group, but in the obese group, it was significantly lower. After adjusting the confounding factors such as physical activity score, sleep duration, and parental myopia, the results of multifactorial regression analysis showed that boys in the obese group were atgreater risk of developing poor vision（OR=1.788, 95% CI: 1.006-3.178）. Conclusion Obese boys in Urumqi are more likely to have poor visual acuity. More studies are needed to explore the association between poor visual acuity and nutritional status in order to provide reference for the prevention and control of poor visual acuity in middle school students.
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