Evidence map›Paper›PMID 36450435›Full record

ArticleBMJ open2022

Association of different digital media experiences with paediatric dry eye in China: a population-based study.

Junxin Ma, Hui Zhu, Wei Guo, Rui Li, Shiya Shen, Yun Wang, Dan Huang, Xiaohan Zhang, Zhujun Fu, Andi Zhao and 6 more

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Review
  5. Article
  6. Review
  7. Meibomian gland atrophy in children with allergic conjunctivitis.International journal of ophthalmology · 2025
    Article
  8. Article
  9. Article
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

16 authors at 4 institutions in 1 country.

Junxin Ma *Ophthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Hui Zhu *Ophthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Wei Guo *Ophthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Rui LiOphthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Shiya ShenOphthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Yun WangPediatrics, Women's Hospital of Nanjing Medical University, Nanjing, China.
Dan HuangDepartment of Child Healthcare, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China.ORCID 0000-0003-3737-5546
Xiaohan ZhangOphthalmology, Wuxi Children's Hospital, Wuxi, China.
Zhujun FuDepartment of Ophthalmology, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Andi ZhaoOphthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Danni ChenOphthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Jiahao SiThe Fourth School of Clinical Medicine of Nanjing Medical University, Nanjing, Jiangsu, China.
Jiyu ZhangThe Fourth School of Clinical Medicine of Nanjing Medical University, Nanjing, Jiangsu, China.
Shasha XuThe Fourth School of Clinical Medicine of Nanjing Medical University, Nanjing, Jiangsu, China.
Liyuan WangThe Fourth School of Clinical Medicine of Nanjing Medical University, Nanjing, Jiangsu, China.
Hu LiuOphthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China liuhu@njmu.edu.cn.ORCID 0000-0002-3952-4165
Jiangsu Province Hospital · CNSecond Affiliated Hospital of Nanjing Medical University · CNNanjing Medical University · CNWuxi People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the ocular surface effects of different digital media experiences in Chinese elementary school students.

designPopulation-based cross-sectional study was used.

setting14 randomly selected primary schools in Yuhuatai District, Nanjing, China

participants2,694 students between 7 and 8-year-old. OUTCOME MEASURES: Prevalence of and risk factors for different types of dry eye disease,and different digital media experience with different ocular signs.

resultsThe prevalence of 'symptomatic DED' was 8.7% (95% CI 7.6% to 9.8%) and 'definite DED' prevalence rate was 5.5% (95% CI 4.7% to 6.4%). In multivariable logistic regression model, allergic conjunctivitis (OR=4.33, 95% CI (3.01 to 6.23), p<0.001), more than 1 hour per day on outdoor activity (OR=0.69, 95% CI (0.49 to 0.99), p=0.043), smartphone (OR=2.73, 95% CI (1.51 to 4.91), p=0.001), tablet (OR=2.09, 95% CI (1.07 to 4.07), p=0.030) and homework (OR=1.86, 95% CI (1.22 to 2.83), p=0.004) were independently associated with 'definite DED', while allergic conjunctivitis (OR=5.58, 95% CI (4.12 to 7.55), p<0.001), more than 1 hour per day on outdoor activity (OR=0.72, 95% CI (0.53 to 0.97), p=0.028), smartphone (OR=2.60, 95% CI (1.55 to 4.35), p<0.001), tablet (OR=1.84, 95% CI (1.02 to 3.34), p=0.044) and homework (OR=2.57, 95% CI (1.84 to 3.60), p<0.001) were independently associated with 'symptomatic DED'.

conclusionsUsing smartphones or tablets for an average of more than 1 hour per day through the course of a year is independently associated with paediatric DED.

Indexed as

Conjunctivitis, AllergicDry Eye SyndromesChildChinaCross-Sectional StudiesHumansInternetcommunity child healthcorneal and external diseasesepidemiologyophthalmologypaediatric ophthalmology

Identifiers

PMID36450435
PMCPMC9717351
OpenAlexW4310424278

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.