The ACES is a school‑based longitudinal cohort conducted in Anyang, central China, designed to investigate the onset and progression of myopia and other ocular diseases in children. Participants were recruited in 2011 from local schools, enrolling 2,893 grade 1 and 2,267 grade 7 students. At baseline, grade 1 children had a mean age of 7.1 years (range 5.7–9.3) with 57.8% boys, while grade 7 children had a mean age of 12.7 years (range 10.0–15.9) with 50.0% boys. The cohort was followed annually for 3–5 years with repeated comprehensive ocular examinations.
Study design
Cohort
Number of participants at first data collection
5,160 (participants)
Age at first data collection
5 - 15 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
2011
Primary Institutions
Anyang Eye Hospital (Healthcare/Medical, China)
Beijing Tongren Hospital (北京同仁医院) (Healthcare/Medical, China)
Capital Medical University (首都医科大学, CCMU) (Academic, China)
Profile paper DOI
Funders
National Natural Science Foundation of China (国家自然科学基金委员会, NSFC) (Government, China)
Ongoing?
No
Data types collected
Engagement
Keywords
Consortia and dataset groups