Evidence map›Paper›PMID 26152123›Full record

Trial reportBMC ophthalmology2015

Effect of outdoor activity on myopia onset and progression in school-aged children in northeast China: the Sujiatun Eye Care Study.

Ju-Xiang Jin, Wen-Juan Hua, Xuan Jiang, Xiao-Yan Wu, Ji-Wen Yang, Guo-Peng Gao, Yun Fang, Chen-Lu Pei, Song Wang, Jie-Zheng Zhang and 2 more

Registry-linked trialOpen access · goldAbstract readComparative StudyClinical Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in BMC ophthalmology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02271373 (Development and Application of Appropriate Technology for Myopia Prevention and Control), which is not on this map. Cited by 154 papers, 14 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
154citing papers in PubMed, 14 pooled it
10.3field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT02271373 nacompletednot on this map

Development and Application of Appropriate Technology for Myopia Prevention and Control

TypeinterventionalSponsorAnhui Medical UniversityRan2012 to 2014Enrolled3,521ConditionsMyopiaArmsincreasing time spent outdoors
3 · Its place in the literature

Who cites it

154 citing papers in PubMed, 14 syntheses or guidelines pooled it, 282 citations in OpenAlex.

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94 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 1 country.

Ju-Xiang JinDepartment of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, 81st Meishan Road, Hefei, 230032, Anhui Province, P.R China. jinjuxiangjjx@126.com.
Wen-Juan HuaDepartment of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, 81st Meishan Road, Hefei, 230032, Anhui Province, P.R China. huawenjuan12010129@126.com.
Xuan JiangHealth Center for Elementary and Middle School Students of Sujiatun District, Shenyang, Liaoning, China. jiangxuan196978@sina.com.
Xiao-Yan WuDepartment of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, 81st Meishan Road, Hefei, 230032, Anhui Province, P.R China. xywu85@126.com.
Ji-Wen YangShenyang Aier Eye Hospital, Shenyang, Liaoning, China. yangjiwen1975@vip.163.com.
Guo-Peng GaoDepartment of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, 81st Meishan Road, Hefei, 230032, Anhui Province, P.R China. ggpahmu@126.com.
Yun FangDepartment of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, 81st Meishan Road, Hefei, 230032, Anhui Province, P.R China. fangyun1509@163.com.
Chen-Lu PeiDepartment of Ophthalmology, the Second Hospital of Anhui Medical University, Hefei, Anhui, China. tipcl10@yahoo.com.cn.
Song WangDepartment of Ophthalmology, the Second Hospital of Anhui Medical University, Hefei, Anhui, China. gnawgnos@163.com.
Jie-Zheng ZhangEducation Bureau of Sujiatun District, Shenyang, Liaoning, China. Sjttwk@163.com.
Li-Ming TaoDepartment of Ophthalmology, the Second Hospital of Anhui Medical University, Hefei, Anhui, China. 13605517183@163.com.
Fang-Biao TaoDepartment of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, 81st Meishan Road, Hefei, 230032, Anhui Province, P.R China. taofangbiao@126.com.
Anhui Medical University · CNSecond Hospital of Anhui Medical University · CNShenyang Sujiatun District Central Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDue to its high prevalence and associated sight-threatening pathologies, myopia has emerged as a major health issue in East Asia. The purpose was to test the impact on myopia development of a school-based intervention program aimed at increasing the time student spent outdoors.

methodsA total of 3051 students of two primary (grades 1-5, aged 6-11) and two junior high schools (grades 7-8, aged 12-14) in both urban and rural Northeast China were enrolled. The intervention group (n = 1735) unlike the control group (n = 1316) was allowed two additional 20-min recess programs outside the classroom. A detailed questionnaire was administered to parents and children. Uncorrected visual acuity (UCVA) was measured using an E Standard Logarithm Vision Acuity Chart (GB11533-2011) at baseline, 6-month and 1-year intervals. A random subsample (n = 391) participated in the clinic visits and underwent cycloplegia at the beginning and after 1 year.

resultsThe mean UCVA for the entire intervention group was significantly better than the entire control group after 1 year (P < 0.001). In the subgroup study, new onset of myopia and changes in refractive error towards myopia were direction during the study period was significantly lower in the intervention group than in the control group (3.70 % vs. 8.50 %, P = 0.048; -0.10 ± 0.65 D/year vs. -0.27 ± 0.52 D/year, P = 0.005). Changes in axial length and IOP were also significantly lower following the intervention group (0.16 ± 0.30 mm/year vs. 0.21 ± 0.21 mm/year, P = 0.034; -0.05 ± 2.78 mmHg/year vs. 0.67 ± 2.21 mmHg/year, P = 0.006).

conclusionsIncreasing outdoor activities prevented myopia onset and development, as well as axial growth and elevated IOP in children.

trial registrationCurrent controlled trials NCT02271373.

Indexed as

Leisure ActivitiesAdolescentAxial Length, EyeChildChinaDisease ProgressionFemaleHumansMaleMyopiaRural PopulationSurveys and QuestionnairesUrban PopulationVisual Acuity

Identifiers

PMID26152123
PMCPMC4495846
OpenAlexW1503653443

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.