Hu Yueyang, Xu Qiaoyi, Shi Jikang, Lin Xinli, Fei Junsong, Hu Yuanchao, Mei Songli, Wu Xiaogang
Department of Social Medicine and Health Management, School of Public Health, Jilin University, Changchun, China.
School of Public Health, Fudan University, Shanghai, China.
Dose Response. 2021 Oct 11;19(4):15593258211042161. doi: 10.1177/15593258211042161. eCollection 2021 Oct-Dec.
We aimed to investigate the prevalence of poor uncorrected visual acuity and the difference among students with different ages and residential areas in the Northeast of China. The relationships between screen time, nighttime sleep duration, and poor uncorrected visual acuity would be explored.
It was a cross-sectional study using multi-stage stratified random sampling method to recruit participants. 2149 students have completed questionnaires and underwent visual acuity examinations. The dose-response curve method was applied to examine the non-linear associations between sleep duration and poor uncorrected visual acuity under different screen time subgroups.
The overall prevalence of poor uncorrected visual acuity and severe poor uncorrected visual acuity was 84.7% and 63.3%, respectively. The dose-response curve showed the odds ratios (ORs) of sleep duration for the poor uncorrected visual increased relatively slowly when screen time <1 hour, then increased dramatically in screen time ≥1 hours. The ORs of sleep time and poor uncorrected visual acuity showed a U-shaped change trend among students with 2 or more hours of screen time every day.
We found associations between nighttime sleep duration and poor uncorrected visual acuity in adolescents. However, these associations were not consistent across all screen time categories.
我们旨在调查中国东北地区视力未矫正不佳的患病率以及不同年龄和居住地区学生之间的差异。同时探讨屏幕使用时间、夜间睡眠时间与视力未矫正不佳之间的关系。
这是一项采用多阶段分层随机抽样方法招募参与者的横断面研究。2149名学生完成了问卷调查并接受了视力检查。应用剂量反应曲线法来检验不同屏幕使用时间亚组下睡眠时间与视力未矫正不佳之间的非线性关联。
视力未矫正不佳和严重视力未矫正不佳的总体患病率分别为84.7%和63.3%。剂量反应曲线显示，当屏幕使用时间<1小时时，睡眠时间与视力未矫正不佳的比值比（OR）增长相对缓慢，而在屏幕使用时间≥1小时时则急剧增加。在每天屏幕使用时间达2小时或更长时间的学生中，睡眠时间与视力未矫正不佳的OR呈U形变化趋势。
我们发现青少年夜间睡眠时间与视力未矫正不佳之间存在关联。然而，这些关联在所有屏幕使用时间类别中并不一致。
