Evidence map›Paper›PMID 21976577›Full record

ArticleThe American journal of tropical medicine and hygiene2011

Vernal keratoconjunctivitis in school children in Rwanda and its association with socio-economic status: a population-based survey.

Stefan De Smedt, John Nkurikiye, Yannick Fonteyne, Arjan Hogewoning, Marjan Van Esbroeck, Dirk De Bacquer, Stephen Tuft, Clare Gilbert, Joris Delanghe, Philippe Kestelyn

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of tropical medicine and hygiene, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 28% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

  1. Vernal Keratoconjunctivitis: A Systematic Review.Clinical reviews in allergy & immunology · 2023
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. Observational
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. 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

10 authors at 1 institution in 1 country.

Stefan De SmedtOphthalmology Department, Kabgayi Hospital, Muhanga, Rwanda. dr.stefan.desmedt@gmail.com
John Nkurikiye
Yannick Fonteyne
Arjan Hogewoning
Marjan Van Esbroeck
Dirk De Bacquer
Stephen Tuft
Clare Gilbert
Joris Delanghe
Philippe Kestelyn
Catholic University of Kabgayi · RW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vernal keratoconjunctivitis (VKC) is an allergic eye disease and an important cause of hospital referral among children in Africa and Asia. Hospital-based studies have suggested a role for parasites in its pathogenesis. To determine the prevalence and risk factors for VKC in Central Africa, we conducted a nested population-based case control study in Rwanda, involving randomly selected primary schools from different environments (rural/urban) and climate. A prevalence of VKC of 4.0% (95% confidence interval 3.3-4.7%) was found among 3,041 children studied (participation rate 94.7%). The intestinal parasitic burden was not related to VKC. Besides hot dry climate (odds ratio [OR] = 1.5, P = 0.05) and male gender (OR = 1.7, P = 0.005), multivariate analysis identified higher economic status as a risk for VKC (OR = 1.4, P = 0.005). The effect on VKC of higher economic status appears not to act through differences in parasitic intestinal load.

Indexed as

Population SurveillanceSocial ClassCase-Control StudiesChildConjunctivitis, AllergicData CollectionFemaleHumansMalePrevalenceRisk FactorsRwanda

Identifiers

PMID21976577
PMCPMC3183782
OpenAlexW2105792740

What OpenQuestion holds

Textmetadata
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.