Influencing factors for myopia among primary and secondary schoolstudents in Suzhou / 预防医学

ABSTRACT

Objective@#To investigate the influencing factors for myopia among primary and secondary school students in Suzhou, so as to provide basis for myopia prevention and control. @*Methods@#The students in Grade 4-12 were recruited by stratified cluster random sampling method. Gender, grade, parents＇ myopia history, outdoor activity time and video display terminal time were collected through the questionnaire of National Surveillance Program of Influencing Factors for Common Diseases and Health in Students. Uncorrected visual acuity and cycloplegic refraction were tested. Multivariate logistic regression analysis was performed to explore myopia-related factors.@*Results@#A total of 990 questionnaires were distributed, and 882 valid questionnaires were recovered, with an effective rate of 89.09%. The prevalence rate of myopia was 78.23% ( 690 cases ). Multivariate logistic regression analysis showed that females ( OR=1.703, 95%CI 1.173-2.474 ) , middle school students ( OR5.597-11.949, 95%CI 3.573-28.349 ) , both parents＇myopia ( OR=2.445, 95%CI 1.597-3.742 ) , video display terminal time over 3 hours per day ( OR=2.026, 95%CI 1.235-3.325 ) were risk factors for myopia; outdoor activity time over 2 hours per day ( OR 0.493-0.510, 95%CI 0.273-0.943 ) was a protective factor for myopia. @*Conclusion@#The prevalence of myopia among primary and secondary school students in Suzhou is 78.23%. Gender, grade, parents＇ myopia history, outdoor activity time and video display terminal time are influencing factors for myopia.