Association between short video exposure and axial length in preschool children: a cross-sectional study
ObjectiveTo investigate the exposure time and content characteristics of short videos among preschool children and analyze their association with axial length, in order to provide a reference for myopia prevention and control in preschool children. MethodsFrom April to June 2023, 326 preschool child...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Chinese Journal of Public Health
2025-06-01
|
| Series: | Zhongguo gonggong weisheng |
| Subjects: | |
| Online Access: | https://www.zgggws.com/article/doi/10.11847/zgggws1147169 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849731858968870912 |
|---|---|
| author | Chenshu LI Senlin LIN Sha LUO Hao CHEN Yi SUN Hong JIANG Yingnan JIA |
| author_facet | Chenshu LI Senlin LIN Sha LUO Hao CHEN Yi SUN Hong JIANG Yingnan JIA |
| author_sort | Chenshu LI |
| collection | DOAJ |
| description | ObjectiveTo investigate the exposure time and content characteristics of short videos among preschool children and analyze their association with axial length, in order to provide a reference for myopia prevention and control in preschool children. MethodsFrom April to June 2023, 326 preschool children from 36 classes in one kindergarten each in Pudong New district and Xuhui district, Shanghai city, were enrolled in this study. Online questionnaires were distributed to parents to collect information on children's sociodemographic characteristics, home electronic device environment, and daily behaviors. Axial length, height, and weight were measured on-site. A tablet computer equipped with a "Children′s Screen Exposure" application was used to accurately measure the duration and content of children′s electronic screen use within one week. Data were analyzed using t-tests, linear regression, and quantile regression. ResultsThe axial length of boys [(22.69 ± 0.65) mm] was significantly longer than that of girls [(22.00 ± 0.72) mm]. Axial length increased significantly with age (β = 0.269, P < 0.001), height (β = 0.346, P < 0.001), weight (β = 0.342, P < 0.001), and daytime sleep duration (β = 1.2×10−3, P = 0.03). Sixty-three (19.33%) preschool children were exposed to short videos, with children's programs accounting for the highest proportion of viewing time (23.18%). 48.40% of the children's viewing time was PG-rated or above, requiring parental guidance or unsuitable for children. The vast majority of the content viewed by children was non-educational (96.09%) and rapidly changing (82.75%). Children also watched a large proportion of reality-based content (52.13%). Children who spent more time watching slow-switching videos had longer axial lengths (β = 0.0385, P = 0.04). ConclusionsPreschool children are exposed to short videos, mostly children′s programs, non-educational content, and rapidly changing content. The viewing time is mainly spent on reality-based content and PG-rated or above content. Children who spend more time watching slow-switching short videos have longer axial lengths. |
| format | Article |
| id | doaj-art-6460e4bdb9d24c5b89d2d8e0250be15e |
| institution | DOAJ |
| issn | 1001-0580 |
| language | zho |
| publishDate | 2025-06-01 |
| publisher | Editorial Office of Chinese Journal of Public Health |
| record_format | Article |
| series | Zhongguo gonggong weisheng |
| spelling | doaj-art-6460e4bdb9d24c5b89d2d8e0250be15e2025-08-20T03:08:24ZzhoEditorial Office of Chinese Journal of Public HealthZhongguo gonggong weisheng1001-05802025-06-0141665566010.11847/zgggws11471691147169Association between short video exposure and axial length in preschool children: a cross-sectional studyChenshu LI0Senlin LIN1Sha LUO2Hao CHEN3Yi SUN4Hong JIANG5Yingnan JIA6School of Public Health, Fudan University Shanghai 200032, ChinaShanghai Eye Disease Prevention and Control Center, Shanghai 200040, ChinaShanghai Xuhui District Maternal and Child Health Hospital, Shanghai 200233, ChinaSchool of Public Health, Fudan University Shanghai 200032, ChinaSchool of Public Health, Fudan University Shanghai 200032, ChinaSchool of Public Health, Fudan University Shanghai 200032, ChinaSchool of Public Health, Fudan University Shanghai 200032, ChinaObjectiveTo investigate the exposure time and content characteristics of short videos among preschool children and analyze their association with axial length, in order to provide a reference for myopia prevention and control in preschool children. MethodsFrom April to June 2023, 326 preschool children from 36 classes in one kindergarten each in Pudong New district and Xuhui district, Shanghai city, were enrolled in this study. Online questionnaires were distributed to parents to collect information on children's sociodemographic characteristics, home electronic device environment, and daily behaviors. Axial length, height, and weight were measured on-site. A tablet computer equipped with a "Children′s Screen Exposure" application was used to accurately measure the duration and content of children′s electronic screen use within one week. Data were analyzed using t-tests, linear regression, and quantile regression. ResultsThe axial length of boys [(22.69 ± 0.65) mm] was significantly longer than that of girls [(22.00 ± 0.72) mm]. Axial length increased significantly with age (β = 0.269, P < 0.001), height (β = 0.346, P < 0.001), weight (β = 0.342, P < 0.001), and daytime sleep duration (β = 1.2×10−3, P = 0.03). Sixty-three (19.33%) preschool children were exposed to short videos, with children's programs accounting for the highest proportion of viewing time (23.18%). 48.40% of the children's viewing time was PG-rated or above, requiring parental guidance or unsuitable for children. The vast majority of the content viewed by children was non-educational (96.09%) and rapidly changing (82.75%). Children also watched a large proportion of reality-based content (52.13%). Children who spent more time watching slow-switching videos had longer axial lengths (β = 0.0385, P = 0.04). ConclusionsPreschool children are exposed to short videos, mostly children′s programs, non-educational content, and rapidly changing content. The viewing time is mainly spent on reality-based content and PG-rated or above content. Children who spend more time watching slow-switching short videos have longer axial lengths.https://www.zgggws.com/article/doi/10.11847/zgggws1147169screen exposurepreschool childrenshort videosaxial lengthscreen switching rateshanghai city |
| spellingShingle | Chenshu LI Senlin LIN Sha LUO Hao CHEN Yi SUN Hong JIANG Yingnan JIA Association between short video exposure and axial length in preschool children: a cross-sectional study Zhongguo gonggong weisheng screen exposure preschool children short videos axial length screen switching rate shanghai city |
| title | Association between short video exposure and axial length in preschool children: a cross-sectional study |
| title_full | Association between short video exposure and axial length in preschool children: a cross-sectional study |
| title_fullStr | Association between short video exposure and axial length in preschool children: a cross-sectional study |
| title_full_unstemmed | Association between short video exposure and axial length in preschool children: a cross-sectional study |
| title_short | Association between short video exposure and axial length in preschool children: a cross-sectional study |
| title_sort | association between short video exposure and axial length in preschool children a cross sectional study |
| topic | screen exposure preschool children short videos axial length screen switching rate shanghai city |
| url | https://www.zgggws.com/article/doi/10.11847/zgggws1147169 |
| work_keys_str_mv | AT chenshuli associationbetweenshortvideoexposureandaxiallengthinpreschoolchildrenacrosssectionalstudy AT senlinlin associationbetweenshortvideoexposureandaxiallengthinpreschoolchildrenacrosssectionalstudy AT shaluo associationbetweenshortvideoexposureandaxiallengthinpreschoolchildrenacrosssectionalstudy AT haochen associationbetweenshortvideoexposureandaxiallengthinpreschoolchildrenacrosssectionalstudy AT yisun associationbetweenshortvideoexposureandaxiallengthinpreschoolchildrenacrosssectionalstudy AT hongjiang associationbetweenshortvideoexposureandaxiallengthinpreschoolchildrenacrosssectionalstudy AT yingnanjia associationbetweenshortvideoexposureandaxiallengthinpreschoolchildrenacrosssectionalstudy |