儿童青少年高度近视的危险因素分析OA

Objective To investigate risk factors associated with high myopia in children and adolescents and provide evidence for prevention.Methods A cross-sectional study enrolled 169 myopic children and adolescents aged 6～18 years from May to October 2025.Participants were divided into a high myopia group(SE≤-6.00D,n=82)and a non-high myopia group(-6.00D＜SE≤-0.50D,n=87).Questionnaire data and refraction results were analyzed by univariate tests and binary logistic regression.Results Univariate analysis showed significant differences in sex,age,grade,age at myopia onset,homework time,sleep duration,vision examination frequency,seat rotation frequency and weekly physical education sessions.Female sex(OR=2.66,95％CI:1.31-5.39,P=0.007)and myopia onset at or before 8 years(OR=3.61,95％CI:1.64-7.92,P＜0.01)were independent risk factors.Each additional weekly physical education session was protective(OR=0.695,95％CI:0.512-0.942,P=0.019).Conclusion Female sex and early-onset myopia are important risk factors.School-based physical education and early follow-up should be strengthened.