成都市初中学生视力低下患病状况及其相关因素分析

Risk Factors of Myopia and the Influencing Factors Among Junior Middle School Students in Chengdu

目的了解成都市初中学生视力低下的患病状况,探明其相关危险因素,为制定防制措施提供依据。方法采用横断面调查方法对成都市初中学生2 518名进行问卷调查。结果成都市初中学生视力低下患病率为62.35%。非条件Logistic回归分析提示,年级(OR=1.65)、有视力低下家族史(OR=1.36)、经常感到眼睛疲劳(OR=2.05)、每晚学习时间>2 h(OR=1.45)、黑板反光(OR=1.28)和看电视时眼睛距电视机距离<3 m(OR=1.69)是视力低下的危险因素;而眼睛疲劳时及时休息(OR=0.60)、经常参加体育锻炼(OR=0.69)和经常吃海产品(OR=0.78)是其保护因素。结论成都市初中学生视力低下的现患率高,且存在诸多危险因素,采取积极有效的预防措施已刻不容缓。

Objective To study the prevalence ＂of poor eyesight among junior middle school students in Chengdu, to explore the risk factors, and to provide bases for the preventive measures. Methods With a questionnaire, a crosectional study was coudueted to survey 2 518 junior nfiklle school students ill Chengdu. Results Among the students surveyed, the prevalence of pool＇ eyesight was 62.35 %Nou-conditional logistic regression analysis indicated that the risk fators were grade（ OR= 1.65）, family history of poor eyesight（ OR = 1.36）, feeling tirol of eyes frequently（ OR = 2.05）, study over 2 hours every day （ OR = 1.45）, reflection of blackboard（ OR = 1.28） and the distance between eyes anti TV sets within 3 meters while watching TV （ OR = 1.69）. The protective factors were having rests when feeling tired of eves（ OR = 0.60）, taking an active part in sports（ OR = 0.69） and eating sea-food froquently （ OR = 0. 78 ）. Conclusion The prevalence rate of poor eyesight is high among junior nfiddle school students in Chengdu and it is quite urgent to take measures as preventiou.