Evidence map›Paper›PMID 27726469›Full record

ArticleOphthalmic epidemiology2016

Completion of Baseline Trachoma Mapping in Malawi: Results of Eight Population-Based Prevalence Surveys Conducted with the Global Trachoma Mapping Project.

Khumbo Kalua, Alvin Chisambi, David Chinyanya, Zachariah Kamwendo, Michael Masika, Rebecca Willis, Rebecca M Flueckiger, Alexandre L Pavluck, Anthony W Solomon

Open access · bronzeAbstract read
In one paragraph

Article in Ophthalmic epidemiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

12 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  2. Article
  3. The global burden of trichiasis in 2016.PLoS neglected tropical diseases · 2019
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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

9 authors at 5 institutions in 4 countries.

Khumbo Kaluaa Department of Ophthalmology , University of Malawi, College of Medicine , Blantyre , Malawi.
Alvin Chisambib Blantyre Institute for Community Ophthalmology , Lions Sight First Eye Hospital , Blantyre , Malawi.
David Chinyanyab Blantyre Institute for Community Ophthalmology , Lions Sight First Eye Hospital , Blantyre , Malawi.
Zachariah Kamwendob Blantyre Institute for Community Ophthalmology , Lions Sight First Eye Hospital , Blantyre , Malawi.
Michael Masikac Ministry of Health , Lilongwe , Malawi.
Rebecca Willisd International Trachoma Initiative , Task Force for Global Health , Decatur , GA , USA.
Rebecca M Flueckigere Clinical Research Department , London School of Hygiene & Tropical Medicine , London , UK.
Alexandre L Pavlucke Clinical Research Department , London School of Hygiene & Tropical Medicine , London , UK.
Anthony W Solomone Clinical Research Department , London School of Hygiene & Tropical Medicine , London , UK.
Blantyre Institute for Community Ophthalmology · MWLondon School of Hygiene & Tropical Medicine · GBInternational Trachoma Initiative · USMinistry of Health · MWUniversity of Malawi · MW

Funding

Wellcome TrustWellcome Trust 098521
6 · The paper itself

Abstract

purposeFollowing a first phase of trachoma mapping in Malawi with the Global Trachoma Mapping Project, we identified and mapped trachoma districts previously suspected to be non-endemic, although adjacent to districts with estimated trachoma prevalences indicating a public health problem.

methodsWe conducted population-based surveys in eight evaluation units (EUs) comprising eight districts in Malawi (total population 3,230,272). A 2-stage cluster random sampling design allowed us to select 30 households from each of 30 clusters per EU; all residents aged 1 year and older in selected households were examined for evidence of trachomatous inflammation-follicular (TF) and trachomatous trichiasis (TT).

resultsNone of the eight EUs had a TF prevalence in 1-9-year-olds ≥10%, one district (Dedza) had a TF prevalence between 5.0% and 9.9%, and only one district (Karonga) had a trichiasis prevalence in adults ≥0.2%.

conclusionThe prevalence of TF and TT in six of eight EUs surveyed was consistent with an original categorization of trachoma being unlikely to be a public health problem. In the absence of formal surveys, health management information system data and other locally available information about trachoma is likely to be useful in predicting areas where public health interventions against trachoma are required.

Indexed as

AdolescentAdultAgedAged, 80 and overChildChild, PreschoolFemaleHealth SurveysHumansHygieneInfantMalawiMaleMiddle AgedPrevalencePublic HealthBlindnessepidemiologyGlobal Trachoma Mapping ProjectMalawimappingmHealthneglected tropical diseasesprevalencetrachomatrichiasis

Identifiers

PMID27726469
PMCPMC5706967
OpenAlexW2531346543

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.