Evidence map›Paper›PMID 21731325›Full record

ArticleMiddle East African journal of ophthalmology2011

Prevalence and determinants of glaucoma in citizens of qatar aged 40 years or older: a community-based survey.

Fatma A Al-Mansouri, Aida Kanaan, Hamad Gamra, Rajiv Khandekar, Shakeel P Hashim, Omar Al Qahtani, Mohd Farouk Ahmed

Open access · greenAbstract read
In one paragraph

Article in Middle East African journal of ophthalmology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 3 pooled it
1.4field-weighted citation impact, top 20% 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, 3 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Pooled it
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  8. Prevalence of Glaucoma in Patients with Obstructive Sleep Apnea.Journal of epidemiology and global health · 2019
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  15. Best practice eye care models.Indian journal of ophthalmology
    Review
  16. Profile of newly referred glaucoma patients to the largest tertiary eye care hospital in Saudi Arabia.Saudi journal of ophthalmology : official journal of the Saudi Ophthalmological Society
    Article
  17. Article
  18. 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

7 authors at 2 institutions in 2 countries.

Fatma A Al-MansouriDepartment of Ophthalmology, Hamad Medical Corporation, Doha, Qatar.
Aida Kanaan
Hamad Gamra
Rajiv Khandekar
Shakeel P Hashim
Omar Al Qahtani
Mohd Farouk Ahmed
Hamad Medical Corporation · QAUniversity of British Columbia · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe present the prevalence and determinants of glaucoma among subjects 40 years of age and older in Qatar. MATERIALS AND

methodsThis community-based survey was held in 2009 at 49 randomly selected clusters. Demographic details and history of glaucoma was collected by the nurses. Ophthalmologists evaluated the optic disc and retina using a digital camera housed in a mobile van. Visual field was tested with an automated perimeter, the intraocular pressure with an applanation tonometer and the angle of the anterior chamber by gonioscopy. A panel of glaucoma experts diagnosed subjects with glaucoma.

resultsThis survey enrolled 3,149 (97.3%) participants. The age- and sex-adjusted prevalence of glaucoma in the population aged 40 years and older was 1.73% (95% confidence intervals [CI] 1.69-1.77). Accordingly, 5,641 individuals in this age group in Qatar would have glaucoma. Chronological age of 60 years and older (Odds ratio [OR] 11.1) and the presence of myopia (OR 1.78) were predictors of glaucoma. Open-angle glaucoma was diagnosed in 44 (65.7%) individuals with glaucoma. In nine (13.4%) and 15 (20.9%) subjects, angle closure glaucoma and other (post-traumatic, pseudoexfoliation) glaucoma were present. Bilateral blindness (vision <3/60) and severe visual impairment (<6/60) were found in four (6%) and three (4.5%) subjects with glaucoma, respectively. Glaucoma was treated in 36 (54%) subjects.

conclusionsThe prevalence of glaucoma among citizens of Qatar aged 40 years and older was 1.71%. Glaucoma was associated with the age of 60 years and older and the presence of myopia.

Indexed as

BlindnessGlaucomaPrevalence SurveyPublic HealthVISION 2020

Identifiers

PMID21731325
PMCPMC3119283
OpenAlexW1971521310

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.