Association between time spent on physical exercise, sleep, homework and suspected myopia among students
10.3760/cma.j.issn.0254-6450.2016.02.006
- VernacularTitle:体育锻炼、睡眠和家庭作业时间与中小学生疑似近视的关系
- Author:
Shaojun XU
1
;
Yuhui WAN
;
Zenghui XU
;
Hui ZHANG
;
Liang XU
;
Bo WANG
;
Fangbiao TAO
Author Information
1. 安徽医科大学公共卫生学院儿少卫生与妇幼保健学系安徽人口健康与优生省级实验室
- Keywords:
Physical activity;
Sleep;
Myopia;
Student;
Questionnaires
- From:
Chinese Journal of Epidemiology
2016;37(2):183-186
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the prevalence of suspected myopia among students and to examine the relationship between time spent on physical exercise,sleep,homework and suspected myopia.Methods A total of 8 030 primary and secondary school students from 4th to 12th grades were selected from the National Student Constitution and Health Survey (NSCHS) in Anhui province in 2014.Time spent on exercise,sleep and homework per day were collected using a self-administrated questionnaire.Visual acuity was examined using the Standard Logarithmic Visual Acuity Chart.Results The overall prevalence of suspected myopia was 69.03％.Prevalence rates of suspected myopia appeared higher in girls,in urban students,with the highest in the 16 to 18 year-old groups.Results from the multiple logistic regression analysis showed that the amount of time spent on physical exercise,sleep and homework per day were all significantly associated with suspected myopia.Suspected myopia was associated with longer time on physical exercise among students aged 8 to 12 years (OR=0.80,95％CI:0.64-0.99),and longer sleep time among students in the age groups of 13 to 15 years and 16 to 18 years (OR=0.73,95％CI:0.56-0.94;OR=0.38,95％CI:0.21-0.68,respectively).Longer time spent on homework significantly increased the risk of suspected myopia among students in the age groups of 8 to 12 years and 13 to 15 years (OR=1.41,95％CI:1.11-1.79;OR=1.74,95％ CI:1.36-2.23,respectively).Conclusion Suspected myopia appeared common among students.Comprehensive intervention programs focusing on sufficient physical exercise and sleep but less homework might help to prevent myopia among students at different ages.
