Jia Zhou1, Yinghua Ma1, Jun Ma1, Zhiyong Zou1, Xiangkun Meng1, Fangbiao Tao2, Chunyan Luo3, Jin Jing4, Dehong Pan5, Jiayou Luo6, Xin Zhang7, Hong Wang8, Haiping Zhao9. 1. Institute of Child and Adolescent Health, Peking University, Beijing 100191, China. 2. Department of Maternal and Child Health, School of Public Health, Anhui Medical University, Anhui Provincial Laboratory of Population Health and Eugenics, Hefei 230032, China. 3. Department of School Health, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China. 4. Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China. 5. Liaoning Provincial Health Supervision Authority, Shenyang 110005, China. 6. School of Public Health, Central South University Changsha 410008, China. 7. Public Health School of Tianjin Medical University, Tianjin 300070, China. 8. Department of Maternal & Child Care and Adolescents Health, Chongqing Medical University, Chongqing 400016, China. 9. Department of Maternal & Child Care and AdolescentsHealth, School of Public Health, Ningxia Medical University, Yinchuan 750004, China.
Abstract
OBJECTIVE: To understand the prevalence of myopia in primary and middle school students in 6 provinces and the possible influencing factors. METHODS: Primary and middle school students were selected through multistage cluster sampling in 60 primary and middle schools in 6 provinces in China. The questionnaire survey and eyesight test were conducted among all the students selected according to the national student's physique and health survey protocol. Pearson chi-square test and binary multivariate logistic regression analysis were done to identify the influencing factors for myopia in students. RESULTS: The prevalence of myopia among primary and middle school students surveyed was 55.7%, the gender specific difference was statistically significant (59.7% for girls, 51.9% for boys) (P<0.01). The prevalence of myopia increased with age obviously. The prevalence was 35.8% in age group 6-8 years, 58.9% in age group 10-12 years, 73.4% in age group 13-15 years and 81.2% in age group 16-18 years, the differences were statistically significant (P<0.001). Single factor and multivariate analysis showed that parents' myopia, distance between computer screen and eyes, distance less than 30 cm between eyes and book while reading, distance less than 10 cm between chest and the table edge while studying, distance less than 3 cm between fingers and pen tip, sleep time, average outdoor activity time during last week, school sport activities in the afternoon, the size of television set at home, time spent on watching TV and playing computer were the influencing factors for myopia. CONCLUSIONS: The prevalence of myopia is till high in primary and middle school students. Myopia is associated with both genetic factors and individual eye health related behaviors.
OBJECTIVE: To understand the prevalence of myopia in primary and middle school students in 6 provinces and the possible influencing factors. METHODS: Primary and middle school students were selected through multistage cluster sampling in 60 primary and middle schools in 6 provinces in China. The questionnaire survey and eyesight test were conducted among all the students selected according to the national student's physique and health survey protocol. Pearson chi-square test and binary multivariate logistic regression analysis were done to identify the influencing factors for myopia in students. RESULTS: The prevalence of myopia among primary and middle school students surveyed was 55.7%, the gender specific difference was statistically significant (59.7% for girls, 51.9% for boys) (P<0.01). The prevalence of myopia increased with age obviously. The prevalence was 35.8% in age group 6-8 years, 58.9% in age group 10-12 years, 73.4% in age group 13-15 years and 81.2% in age group 16-18 years, the differences were statistically significant (P<0.001). Single factor and multivariate analysis showed that parents' myopia, distance between computer screen and eyes, distance less than 30 cm between eyes and book while reading, distance less than 10 cm between chest and the table edge while studying, distance less than 3 cm between fingers and pen tip, sleep time, average outdoor activity time during last week, school sport activities in the afternoon, the size of television set at home, time spent on watching TV and playing computer were the influencing factors for myopia. CONCLUSIONS: The prevalence of myopia is till high in primary and middle school students. Myopia is associated with both genetic factors and individual eye health related behaviors.
Authors: Gui-You Yang; Li-Hua Huang; Katrina L Schmid; Chen-Guang Li; Jing-Yi Chen; Guan-Hao He; Li Liu; Zeng-Liang Ruan; Wei-Qing Chen Journal: Int J Environ Res Public Health Date: 2020-02-07 Impact factor: 3.390