Analysis of the prevalence of screening myopia among Kazakh nationality primary and secondary school students in Xin-jiang
Objective To investigate the prevalence of myopia among Kazakh students in Xinjiang,so as to provide the data support for myopia prevention and control.Methods From March to May 2022,stratified random cluster sampling was used to se-lect 18 218 Kazakh students in grades 1 to 12 who underwent ocular examination,who were from 81 schools of Urumqi,Changji,and Tacheng in Xinjiang Uyghur Autonomous Region.The Chi-square test was used to compare differences in myopia detection rates among students of different grades,genders,regions,urban-rural distribution and school stages.Results The prevalence of screening myopia was 25.6%(4 660)among Kazakh primary and secondary students.The proportion of mild,moderate,and high myopia were 79.5%,17.3%and 3.2%,respectively.The prevalence rate of screening myopia in girls was higher than that in boys(30.4%,20.9%)(x2=217.17,P<0.01),and there was a significant difference in the degree of screening myopia between differ-ent genders(x2=9.46,P<0.05).The screening myopia detection rate of Urumqi was higher than that of Tacheng and Changji Hui Autonomous Prefecture(37.3%,29.0%,20.0%),and the difference between different regions was statistically significant(x2=238.36,P<0.01).The detection rate of screening myopia was higher in urban areas than in rural areas(33.8%,14.4%),and the difference was statistically significant(x2=881.54,P<0.01).Overall,the difference in the detection rate of screening myopia a-mong students of different schooling stages was found to be statistically significant(x2=1 056.51,P<0.01);and the screening myo-pia detection rate was higher among ordinary middle school students than vocational middle school and primary school students(37.8%,31.7%,15.8%).A statistically significant difference was also found in the degree of screening myopia among different schooling stages(x2=104.70,P<0.01).Conclusion The detection rate of screening myopia among Kazakh primary and secondary school students in Xinjiang is relatively low,and corresponding interventions should be taken according to the distribution character-istics of myopia among Kazakh primary and secondary school students,to reduce the occurrence of myopia among students.
MyopiaPrevalenceRegression analysisStudentsMinority groups