Abstract: Objective To investigate prevalence of myopia and its influential factors among pupils aged 8-9 years in Haidian district, Beijing, in order to provide basis for prevention and control of myopla. Methods At the end of December in 2016, 2 241 pupils aged 8-9 years from 11 primary school were recruited by using cluster sampling method.The participants were asked to fill in questionnaires with the help of parents, visual examination and physical examination were taken as well. Results The prevalence of myopia among pupils aged 8-9 years in Haidian district was 58.3%(1 206/2 241).The prevalence rates of myopia among boys and girls were 52.3% and 55.4%,respectively.Multi-factor Logistic regression analysis showed that higher frequency of keeping correct reading/writing postures(OR=0.879,95% CI:0.798-0.968,P=0.009)was a protective factor of pupil′s myopia, while longer time of taking extracurricular classes(OR=1.408,95% CI:1.142-1.736,P=0.001)、Father′s myopia(OR=1.464,95% CI:1.204-1.78,P<0.001)、mother′s myopia(OR=1.667,95% CI:1.365-2.035,P<0.001)were risk factors. Conclusionss The situation of the myopia prevention among pupils aged 8-9 years in Haidian District is serious.The targeted interventions should be implemented to address this issue.

Key words: myopia, influencing factors, 8-9 years old, pupils

摘要： 目的 了解北京市海淀区8～9岁小学生近视检出率及影响因素,为开展近视防控工作提供依据。方法 2016年12月底在北京市海淀区城区采用整群抽样方法,随机抽取11所小学2 241名8～9岁小学生,对其进行屈光检查、体格测量及有父母参与的问卷调查。结果 北京市海淀区8～9岁小学生近视检出率为53.8%(1 206/2 241),其中男生近视检出率为52.3%,女生55.4%。多因素Logistic回归分析结果显示,保持正确读写姿势频数多(OR=0.879,95% CI:0.798～0.968,P=0.009)是学生近视的保护因素;学习日平均每天上课外辅导班时间长(OR=1.408,95% CI:1.142～1.736,P=0.001)、父亲近视(OR=1.464,95% CI:1.204～1.78,P<0.001)、母亲近视(OR=1.667,95% CI:1.365～2.035,P<0.001)是学生近视的危险因素。结论 北京市海淀区8～9岁小学生近视检出情况不容乐观,应采取有针对性的综合干预措施加以控制。

关键词: 近视, 影响因素, 8～9岁, 小学生