Evidence map›Paper›PMID 29197374›Full record

ArticleBMC ophthalmology2017

Prevalence and associated factors of strabismus in former preterm and full-term infants between 4 and 10 Years of age.

Achim Fieß, Ruth Kölb-Keerl, Alexander K Schuster, Markus Knuf, Bernd Kirchhof, Philipp S Muether, Jacqueline Bauer

Open access · goldAbstract read
In one paragraph

Article in BMC ophthalmology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
3.0field-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

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 57 citations in OpenAlex.

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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 3 institutions in 1 country.

Achim FießDepartment of Ophthalmology, Helios Dr. Horst Schmidt Klinik, Ludwig-Erhard-Straße 100, 65199, Wiesbaden, Germany. Achim.Fiess@gmail.com.ORCID http://orcid.org/0000-0002-3867-2350
Ruth Kölb-KeerlDepartment of Ophthalmology, Helios Dr. Horst Schmidt Klinik, Ludwig-Erhard-Straße 100, 65199, Wiesbaden, Germany.
Alexander K SchusterDepartment of Ophthalmology, University Medical Center Mainz, Mainz, Germany.
Markus KnufDepartment of Paediatrics, Helios Dr. Horst Schmidt Klinik, Wiesbaden, Germany.
Bernd KirchhofDepartment of Ophthalmology, University of Cologne, Cologne, Germany.
Philipp S MuetherDepartment of Ophthalmology, University of Cologne, Cologne, Germany.
Jacqueline BauerDepartment of Paediatrics, Helios Dr. Horst Schmidt Klinik, Wiesbaden, Germany.
Helios Dr. Horst Schmidt Kliniken Wiesbaden · DEJohannes Gutenberg University Mainz · DEUniversity of Cologne · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLimited data exist collating most of the associated factors for strabismus in one analysis. The aim of this study was to assess the prevalence of strabismus and to analyse associated factors in former preterm and full-term infants.

methodsIn this cross-sectional study, 239 former preterm infants with gestational age (GA) ≤ 32 weeks and 264 former full-term born infants with GA ≥ 37 weeks underwent detailed ophthalmologic examination in the age of 4-10 years and perinatal data assessment for risk factor analysis. Ophthalmologic examinations included cover testing, best corrected visual acuity, cycloplegic objective refraction, slit lamp as well as fundus examinations. For association analysis with strabismus, the following data was collected and included in multivariable analysis: sex, age at examination, anisometropia, myopic and hyperopic refractive error (≥ 3 dioptres), astigmatism, birth weight percentile, gestational age, retinopathy of prematurity occurrence, maternal age at childbirth, mother smoking, breastfeeding < 3 months, artificial ventilation, intraventricular bleeding, and other perinatal adverse events.

resultsOverall, 4/264 (2%) full-term infants, 15/125 (12%) preterm-infants with GA 29-32 weeks without ROP, 13/59 (22%) preterm infants with GA ≤ 28 weeks without ROP and 14/55 (26%) with GA ≤ 32 weeks with retinopathy of prematurity were affected by strabismus. In the multivariable regression model strabismus was associated with GA (OR = 0.84 per week; p = 0.001), hyperopic refractive error (OR = 4.22; p = 0.002) and astigmatism (OR = 1.68; p = 0.02).

conclusionThis investigation highlights that low gestational age and refraction of the eye are independent risk factors for strabismus, while the other factors show less independent influence.

Indexed as

Infant, PrematureChildChild, PreschoolCross-Sectional StudiesEsotropiaExotropiaFemaleGestational AgeHumansInfant, NewbornMaleMultivariate AnalysisPrevalenceProspective StudiesRetinopathy of PrematurityRisk FactorsEsotropiaExotropiaLow birth weightLow gestational agePremature birthPrevalence of strabismus

Identifiers

PMID29197374
PMCPMC5712131
OpenAlexW2774929922

What OpenQuestion holds

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Registered trials

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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.