Relationship between age at menarche and screening positive myopia among girls / 中国学校卫生

ABSTRACT

Objective@#To assess screening method for myopia among Chinese school age children and adolescents, and to provide scientific evidence for an appropriate protocol for vision screening.@*Methods@#According to technical protocols of 2014 Chinese National Survey on Students Constitution and Health, a total of 1 725 primary and middle school girls aged 9 to 13 years old from Suzhou, Hefei and Chizhou of Anhui Province were selected. Basic information and menarche were collected by questionnaires. Distance visual acuity and subjective refraction were used for screening myopia. And multivariate Logistic regression analysis was used to analyze the relationship between menarche and screening myopia.@*Results@#The detection rate of screening positive myopia of girls aged 9-13 years in Anhui province was 62.5%(1 078). The ratio of screening myopia was significantly higher in urban girls (71.0%) compared with suburban girls(54.6%), and higher in girls with homework time >2 h compared (70.8%) with homework time 1-2 h and <1 h (68.4%, 54.9%) groups ( χ 2=49.50, 37.88, P <0.01). The detection rate of screening myopia between different menarche groups was only statistically significant among girls aged 9 and 13 years ( χ 2=4.75, 11.22, P <0.05). Multivariate Logistic regression analysis showed that menarche was significantly associated with screening myopia ( OR =2.06, 95% CI =1.68- 2.52 ). After controlling age and BMI, the association remained ( P <0.05). After further controlling family residence background and homework time, the association diminished ( P >0.05).@*Conclusion@#Menarche is closely associated with screening myopia among girls in selected age groups, future cohort studies are needed to focus on prevention and control of myopia during pubertal development.