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Near work, outdoor activity, and myopia in children in rural China: the Handan offspring myopia study

Overview of attention for article published in BMC Ophthalmology, November 2017
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Title
Near work, outdoor activity, and myopia in children in rural China: the Handan offspring myopia study
Published in
BMC Ophthalmology, November 2017
DOI 10.1186/s12886-017-0598-9
Pubmed ID
Authors

Zhong Lin, Tie Ying Gao, Balamurali Vasudevan, Kenneth J. Ciuffreda, Yuan Bo Liang, Vishal Jhanji, Su Jie Fan, Wei Han, Ning Li Wang

Abstract

The near work and outdoor activity are the most important environmental risk factors for myopia. However, data from Chinese rural children are relatively rare and remain controversial. Therefore, the purpose of this study was to evaluate the relationship of both near work and outdoor activities with refractive error in rural children in China. In this cross-sectional study, 572 (65.1%) of 878 children (6-18 years of age) were included from the Handan Offspring Myopia Study (HOMS). Information from the parents on these children, as well as the parent's non-cycloplegic refraction, were obtained from the database of the Handan Eye Study conducted in the years 2006-2007. A comprehensive vision examination, including cycloplegic refraction, and a related questionnaire, were assessed on all children. The overall time spent on near work and outdoor activity in the children was 4.8 ± 1.6 and 2.9 ± 1.4 h per day, respectively. Myopic children spent more time on near work (5.0 ± 1.7 h vs.4.7 ± 1.6 h, p = 0.049), while no significant difference was found in outdoor activity hours (2.8 ± 1.3 h vs. 3.0 ± 1.4 h, p = 0.38), as compared to non-myopic children. In the multiple logistic analysis, in general, no association between near work and myopia was found after adjusting for the children's age, gender, parental refractive error, parental educational level, and daily outdoor activity hours [odds ratio (OR), 95% confidence interval (CI): 1.10, 0.94-1.27]. However, a weak protective effect of the outdoor activity on myopia was found (OR, 95% CI: 0.82, 0.70-0.96), after adjusting for similar confounders. In general, no association between near work and myopia was found, except for the high near work subgroup with moderate outdoor activity levels. A weak protective effect of outdoor activity on myopia in Chinese rural children was observed.

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 53 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 53 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 11 21%
Student > Master 10 19%
Student > Postgraduate 5 9%
Other 4 8%
Professor > Associate Professor 3 6%
Other 10 19%
Unknown 10 19%
Readers by discipline Count As %
Medicine and Dentistry 23 43%
Nursing and Health Professions 6 11%
Agricultural and Biological Sciences 3 6%
Psychology 2 4%
Pharmacology, Toxicology and Pharmaceutical Science 1 2%
Other 4 8%
Unknown 14 26%

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 29 November 2017.
All research outputs
#7,636,843
of 12,219,921 outputs
Outputs from BMC Ophthalmology
#263
of 654 outputs
Outputs of similar age
#188,991
of 339,499 outputs
Outputs of similar age from BMC Ophthalmology
#18
of 60 outputs
Altmetric has tracked 12,219,921 research outputs across all sources so far. This one is in the 23rd percentile – i.e., 23% of other outputs scored the same or lower than it.
So far Altmetric has tracked 654 research outputs from this source. They receive a mean Attention Score of 2.2. This one has gotten more attention than average, scoring higher than 50% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 339,499 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 34th percentile – i.e., 34% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 60 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 55% of its contemporaries.