Investigation of the Visual Health and Related Factors in the Students of Chinese Sports School

Objective: To investigate the visual health of students at sports schools in China and analyze the related factors, so as to provide the reference for prevention and control of myopia in children and adolescents. Methods: Cluster sampling method was conducted to randomly select the students from 66 sports schools of 7 provinces, the status of visual health and its related factors were obtained through questionnaires. The data from a total of 12 698 students aged 7 to 18 years were analyzed through chi-square test and Logistic regression. Results: The overall poor vision rate was 18.6%, among which, the poor vision rate of 7~12, 13~15,16~18 years old students were 11.5%, 19.2% and 24.6%, respectively. The poor vision rate was lower than the rate of the full-time school students in 2014(45.7%, 74.4% and 83.3% respectively). Chi-square analysis showed that poor vision rate differed significantly in variables including gender, grade, training time, school days non-screen close work time, school days screen time,holidays screen time, whether father and mother were nearsighted(χ2were 146.75, 273.45, 120.57, 58.70, 22.91, 32.39, 384.26,229.36, respectively, P<0.05). Multivariate Logistic regression analysis showed that girls, older students, school days non-screen close work time ≥1(h/d), father with myopia and mother with myopia were positive factors for poor vision(OR were 1.806、2.067~11.705、 1.278、 2.285、 2.892, respectively, P<0.05). 2~5 years training experience, 1~3(h/d) of training time were negative factors for poor vision(OR were 0.822, 0.684~0.839, respectively, P<0.05). Conclusion: The eyesight of the sports school students in China is better than that of the full-time school students. However, age, gender, whether parents are nearsighted, and close work time are the risk factors for the eyesight of sports school students.