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This cohort study aimed to assess the change of refractive status in Chinese school children.
A cohort study was conducted in 96 primary and secondary schools in 16 districts of Tianjin from 2018 to 2020, including about 36452 people totally. The changes in myopia rate in 3 years were compared by a generalized estimation equation. The distribution of average equivalent spherical mirror and different regions and grades was evaluated by linear regression analysis, and the correlation between the equivalent spherical mirror and different gender, nationality, and age was evaluated.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Grade | The changes in myopia rate in 3 years were compared by generalized estimation equation in different grades |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| outdoor time | Other | This cohort study aimed to assess the change of refractive status in Chinese school children under different outdoor time |
|
| Measure | Description | Time Frame |
|---|---|---|
| refractive error | The changes in refractive error were compared by generalized estimation equation. | change from baseline at 36 months |
| sex disparity | The changes in refractive error were compared between different sex | change from baseline at 36 months |
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This large-scale cohort study was conducted in 36452 schoolchildren on myopia development among schoolchildren in 96 elementary and high schools in 16 districts of Tianjin in China.
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Yan Wang, director | Contact | +8615022756478 | fanqian2002_yahoo@163.com |
| Name | Affiliation | Role |
|---|---|---|
| Yan Wang, director | Tianjin Eye Hospital | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Tianjin Eye Hospital | Recruiting | Tianjin | 300020 | China |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 30707221 | Background | Saw SM, Matsumura S, Hoang QV. Prevention and Management of Myopia and Myopic Pathology. Invest Ophthalmol Vis Sci. 2019 Feb 1;60(2):488-499. doi: 10.1167/iovs.18-25221. | |
| 33443542 | Background | Wang J, Li Y, Musch DC, Wei N, Qi X, Ding G, Li X, Li J, Song L, Zhang Y, Ning Y, Zeng X, Hua N, Li S, Qian X. Progression of Myopia in School-Aged Children After COVID-19 Home Confinement. JAMA Ophthalmol. 2021 Mar 1;139(3):293-300. doi: 10.1001/jamaophthalmol.2020.6239. |
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| ID | Term |
|---|---|
| D009216 | Myopia |
| D000086382 | COVID-19 |
| D012030 | Refractive Errors |
| ID | Term |
|---|---|
| D005128 | Eye Diseases |
| D011024 | Pneumonia, Viral |
| D011014 | Pneumonia |
| D012141 | Respiratory Tract Infections |
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| 33996724 | Background | Wang W, Zhu L, Zheng S, Ji Y, Xiang Y, Lv B, Xiong L, Li Z, Yi S, Huang H, Zhang L, Liu F, Wan W, Hu K. Survey on the Progression of Myopia in Children and Adolescents in Chongqing During COVID-19 Pandemic. Front Public Health. 2021 Apr 28;9:646770. doi: 10.3389/fpubh.2021.646770. eCollection 2021. |
| D007239 |
| Infections |
| D014777 | Virus Diseases |
| D018352 | Coronavirus Infections |
| D003333 | Coronaviridae Infections |
| D030341 | Nidovirales Infections |
| D012327 | RNA Virus Infections |
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |