Evidence map›Paper›PMID 28532208›Full record

ArticleOphthalmic epidemiology2018

The Burden of and Risk Factors for Trachoma in Selected Districts of Zimbabwe: Results of 16 Population-Based Prevalence Surveys.

Isaac Phiri, Portia Manangazira, Colin K Macleod, Takafira Mduluza, Tinashe Dhobbie, Shorai Grace Chaora, Chriswell Chigwena, Joshua Katiyo, Rebecca Willis, Ana Bakhtiari and 6 more

Abstract read
In one paragraph

Article in Ophthalmic epidemiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
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

14 citing papers in PubMed.

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  13. Quality Assurance and Quality Control in the Global Trachoma Mapping Project.The American journal of tropical medicine and hygiene · 2018
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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

16 authors.

Isaac Phiria Department of Epidemiology and Disease Control , Ministry of Health and Child Care , Harare , Zimbabwe.
Portia Manangaziraa Department of Epidemiology and Disease Control , Ministry of Health and Child Care , Harare , Zimbabwe.
Colin K Macleodb Clinical Research Department , London School of Hygiene & Tropical Medicine , London , UK.
Takafira Mduluzad Department of Biochemistry , Faculty of Sciences, University of Zimbabwe , Mt Pleasant , Harare , Zimbabwe.
Tinashe Dhobbiea Department of Epidemiology and Disease Control , Ministry of Health and Child Care , Harare , Zimbabwe.
Shorai Grace Chaoraf National Statistical Agency , Harare , Zimbabwe.
Chriswell Chigwenaa Department of Epidemiology and Disease Control , Ministry of Health and Child Care , Harare , Zimbabwe.
Joshua Katiyoa Department of Epidemiology and Disease Control , Ministry of Health and Child Care , Harare , Zimbabwe.
Rebecca Willisg Task Force for Global Health , Atlanta , GA , USA.
Ana Bakhtiarig Task Force for Global Health , Atlanta , GA , USA.
Peter Bareh Sightsavers , Harare , Zimbabwe.
Paul Courtrighti KCCO International, Division of Ophthalmology , University of Cape Town , South Africa.
Boniface Machekaj Department of Ophthalmology , Parirenyatwa Group of Hospitals , Harare , Zimbabwe.
Nicholas Midzik Department of Medical Microbiology , College of Health Sciences, University of Zimbabwe , Harare , Zimbabwe.
And Anthony W Solomonb Clinical Research Department , London School of Hygiene & Tropical Medicine , London , UK.
Global Trachoma Mapping Project

Funding

Wellcome TrustWellcome Trust 098521World Health Organization 001
6 · The paper itself

Abstract

backgroundTrachoma, a leading cause of blindness, is targeted for global elimination as a public health problem by 2020. In order to contribute to this goal, countries should demonstrate reduction of disease prevalence below specified thresholds, after implementation of the SAFE strategy in areas with defined endemicity. Zimbabwe had not yet generated data on trachoma endemicity and no specific interventions against trachoma have yet been implemented.

methodsTwo trachoma mapping phases were successively implemented in Zimbabwe, with eight districts included in each phase, in September 2014 and October 2015. The methodology of the Global Trachoma Mapping Project was used.

resultsOur teams examined 53,211 people for trachoma in 385 sampled clusters. Of 18,196 children aged 1-9 years examined, 1526 (8.4%) had trachomatous inflammation-follicular (TF). Trichiasis was observed in 299 (1.0%) of 29,519 people aged ≥15 years. Of the 16 districts surveyed, 11 (69%) had TF prevalences ≥10% in 1-9-year-olds, indicative of active trachoma being a significant public health problem, requiring implementation of the A, F and E components of the SAFE strategy for at least 3 years. The total estimated trichiasis backlog across the 16 districts was 5506 people. The highest estimated trichiasis burdens were in Binga district (1211 people) and Gokwe North (854 people).

conclusionImplementation of the SAFE strategy is needed in parts of Zimbabwe. In addition, Zimbabwe needs to conduct more baseline trachoma mapping in districts adjacent to those identified here as having a public health problem from the disease.

Indexed as

AdolescentAdultAgedChildChild, PreschoolCost of IllnessCross-Sectional StudiesFemaleHumansInfantMaleMiddle AgedPrevalenceRisk FactorsTrachomaTrichiasiseliminationGlobal Trachoma Mapping Projectneglected tropical diseasesprevalencetrachomatrachomatous inflammation–folliculartrichiasisZimbabwe

Identifiers

PMID28532208
PMCPMC6319166

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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.