Evidence map›Paper›PMID 25165711›Full record

ArticleBioMed research international2014

Prevalence and risk factors for pterygium in rural older adults in Shandong Province of China: a cross-sectional study.

Wanzhen Jiao, Chengchao Zhou, Ting Wang, Shaoyuan Yang, Hongsheng Bi, Liping Liu, Yan Li, Lihua Wang

Open access · hybridAbstract read
In one paragraph

Article in BioMed research international, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.7field-weighted citation impact, top 11% 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

18 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Computer-Assisted Pterygium Screening System: A Review.Diagnostics (Basel, Switzerland) · 2022
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Bilateral Double-headed Recurrent Pterygium: A Case Presentation and Literature Review.Medical hypothesis, discovery & innovation ophthalmology journal · 2020
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. The prevalence and determinants of pterygium in rural areas.Journal of current ophthalmology · 2017
    Article
  17. Article
  18. Observational
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

8 authors at 5 institutions in 1 country.

Wanzhen JiaoDepartment of Ophthalmology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China.
Chengchao ZhouInstitute of Social Medicine and Health Service Management, School of Public Health, Shandong University, Jinan 250012, China.
Ting WangShandong Eye Hospital, Shandong Eye Institute, Shandong Academy of Medical Sciences, Jinan 250021, China.
Shaoyuan YangDepartment of Ophthalmology, Qianfoshan Hospital Affiliated to Shandong University, Jinan 250014, China.
Hongsheng BiEye Hospital, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
Liping LiuDepartment of Ophthalmology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China.
Yan LiDepartment of Ophthalmology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China.
Lihua WangDepartment of Ophthalmology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China.
Shandong Provincial Hospital · CNShandong University · CNShandong First Medical University · CNShandong Provincial QianFoShan Hospital · CNShandong University of Traditional Chinese Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To investigate the prevalence and risk factors for pterygium in rural older adults in Shandong Province, eastern China, a population-based, cross-sectional study was performed from April to July 2008. By means of cluster random sampling methods, a total of 19,583 people aged 50 years or above were randomly selected from four rural counties. Out of 19,583 people, 1,767 residents were excluded mainly because they were migrant workers when this study was performed. Finally, 17,816 (90.98%) people were included as eligible subjects. They received a comprehensive eye examination and a structured questionnaire voluntarily. Patients with pterygium were defined as having pterygium at the time of survey or pterygium surgery had been performed. 1,876 people were diagnosed as pterygium, either unilateral (1,083) or bilateral (793), which is equivalent to a prevalence of 10.53% (95% CI, 10.08-10.98). The multivariate logistic regression analysis showed that pterygium was independently associated with older age, areas, outdoor time, educational level, and use of hat and/or sunglasses. The prevalence of pterygium increased with age and hours spent under sunshine per day. Meanwhile, the higher the educational level and the more use of hat and/or sunglasses, the lower the pterygium prevalence.

Indexed as

PrevalenceRural PopulationAgedAged, 80 and overAsian PeopleChinaEyeglassesFemaleHumansMaleMiddle AgedPterygiumRisk Factors

Identifiers

PMID25165711
PMCPMC4140101
OpenAlexW1967498633

What OpenQuestion holds

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LicenceCC BY
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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.