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Prevalence of and factors associated with myopia in primary school students in the Chaoyang District of Beijing, China

Overview of attention for article published in Japanese Journal of Ophthalmology, September 2015
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Title
Prevalence of and factors associated with myopia in primary school students in the Chaoyang District of Beijing, China
Published in
Japanese Journal of Ophthalmology, September 2015
DOI 10.1007/s10384-015-0409-x
Pubmed ID
Authors

Yanyu Lyu, Hao Zhang, Yueqiu Gong, Dan Wang, Ting Chen, Xianghui Guo, Suhong Yang, Danyan Liu, Meixia Kang

Abstract

To determine the prevalence of and risk factors for myopia in primary school children in Chaoyang District, Beijing. This cross-sectional prevalence survey was conducted in September to October 2011 in 4 schools randomly chosen from among the 126 primary schools in Chaoyang District. Students were assessed with autorefractometry under cycloplegia and checked with retinoscopy for accuracy. Questionnaires were completed by the students' parents. Myopia was present in 36.7 ± 0.7 % of 4249 students aged 5-14 years old. The prevalence of myopia in girls (38.6 ± 1.1 %) was significantly higher than in boys (35.0 ± 1.0 %) (p = 0.015) and increased with age (p < 0.001), with the highest prevalence observed in children aged ≥11 years (67.5 ± 1.8 %). After adjustment, having a myopic parent (aOR 3.10; 95 % CI 2.49-3.86), incorrect reading posture (aOR 2.09; 95 % CI 1.75-2.50), reading a book at a distance of <20 cm (aOR 1.60; 95 % CI 1.16-2.21), studying at home for >3 h daily (aOR 1.50; 95 % CI 1.12-2.01), studying for >1 h continuously (aOR 1.21; 95 % CI 1.02-1.45), and reading extracurricular books that utilize a font larger than that used in textbooks (aOR 0.74; 95 % CI 0.59-0.94) were all significantly associated with myopia. The prevalence of myopia among primary school children in Beijing increased with age, and was significantly higher in girls ≥10 years old. Myopia was significantly associated with parental myopia, reading posture, distance between the eyes and the book being read, font size used in extracurricular reading material, time spent studying at home, and the duration of continuous study time.

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Geographical breakdown

Country Count As %
Unknown 52 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 9 17%
Student > Bachelor 7 13%
Student > Ph. D. Student 4 8%
Student > Doctoral Student 3 6%
Other 3 6%
Other 7 13%
Unknown 19 37%
Readers by discipline Count As %
Medicine and Dentistry 18 35%
Nursing and Health Professions 9 17%
Biochemistry, Genetics and Molecular Biology 3 6%
Unspecified 1 2%
Social Sciences 1 2%
Other 1 2%
Unknown 19 37%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 02 September 2015.
All research outputs
#20,290,425
of 22,826,360 outputs
Outputs from Japanese Journal of Ophthalmology
#342
of 486 outputs
Outputs of similar age
#224,394
of 267,079 outputs
Outputs of similar age from Japanese Journal of Ophthalmology
#10
of 23 outputs
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So far Altmetric has tracked 486 research outputs from this source. They receive a mean Attention Score of 2.5. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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