Evidence map›Paper›PMID 28850014›Full record

ArticleOphthalmic epidemiology2018

Trachoma in the Democratic Republic of the Congo: Results of 46 Baseline Prevalence Surveys Conducted with the Global Trachoma Mapping Project.

Janvier Kilangalanga, Jean Marie Ndjemba, Pitchouna A Uvon, Felix M Kibangala, Jean-Lebone Safari B Mwandulo, Nicaise Mavula, Martin Ndombe, Junior Kazadi, Henry Limbaka, Daniel Cohn and 10 more

Abstract readMulticenter Study
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 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. The global burden of trichiasis in 2016.PLoS neglected tropical diseases · 2019
    Article
  7. Article
  8. Article
  9. Article
  10. Quality Assurance and Quality Control in the Global Trachoma Mapping Project.The American journal of tropical medicine and hygiene · 2018
    Article
  11. 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

20 authors.

Janvier Kilangalangaa Saint Joseph Hospital , Kinshasa , Democratic Republic of the Congo.
Jean Marie Ndjembab Neglected Tropical Diseases Unit, Ministère de la Santé Publique , Kinshasa , Democratic Republic of the Congo.
Pitchouna A Uvonb Neglected Tropical Diseases Unit, Ministère de la Santé Publique , Kinshasa , Democratic Republic of the Congo.
Felix M Kibangalab Neglected Tropical Diseases Unit, Ministère de la Santé Publique , Kinshasa , Democratic Republic of the Congo.
Jean-Lebone Safari B Mwandulob Neglected Tropical Diseases Unit, Ministère de la Santé Publique , Kinshasa , Democratic Republic of the Congo.
Nicaise Mavulac RTI International , Kinshasa , Democratic Republic of the Congo.
Martin Ndombec RTI International , Kinshasa , Democratic Republic of the Congo.
Junior Kazadid World Vision International , Kinshasa , Democratic Republic of the Congo.
Henry Limbakae Christian Blind Mission , Kinshasa , Democratic Republic of the Congo.
Daniel Cohnf RTI International , Washington , DC , USA.
Jean-Jacques Tougouef RTI International , Washington , DC , USA.
Achille Kaboref RTI International , Washington , DC , USA.
Lisa Rotondof RTI International , Washington , DC , USA.
Rebecca Willisg Task Force for Global Health , Decatur , GA , USA.
Amadou Alfa Bioh Ministry of Health , Parakou , Benin.
Boubacar Kadrii Ministry of Health , Niamey , Niger.
Ana Bakhtiarig Task Force for Global Health , Decatur , GA , USA.
Jeremiah M Ngondij RTI International , Dar es Salaam , Tanzania.
Anthony W Solomonk Clinical Research Department , London School of Hygiene & Tropical Medicine , London , UK.
For The Global Trachoma Mapping Project

Funding

Wellcome TrustWorld Health Organization 001
6 · The paper itself

Abstract

purposeTrachoma was suspected to be endemic in parts of the Democratic Republic of the Congo (DRC). We aimed to estimate prevalences of trachomatous inflammation-follicular (TF), trichiasis, and water and sanitation (WASH) indicators in suspected-endemic Health Zones.

methodsA population-based prevalence survey was undertaken in each of 46 Health Zones across nine provinces of DRC, using Global Trachoma Mapping Project methods. A two-stage cluster random sampling design was used in each Health Zone, whereby 25 villages (clusters) and 30 households per cluster were sampled. Consenting eligible participants (children aged 1-9 years and adults aged ≥15 years) were examined for trachoma by GTMP-certified graders; households were assessed for access to WASH.

resultsA total of 32,758 households were surveyed, and 141,853 participants (98.2% of those enumerated) were examined for trachoma. Health Zone-level TF prevalence in 1-9-year-olds ranged from 1.9-41.6%. Among people aged ≥15 years, trichiasis prevalences ranged from 0.02-5.1% (95% CI 3.3-6.8). TF prevalence in 1-9-year-olds was ≥5% in 30 Health Zones, while trichiasis prevalence was ≥0.2% in 37 Health Zones.

conclusionTrachoma is a public health problem in 39 of 46 Health Zones surveyed. To meet elimination targets, 37 Health Zones require expanded trichiasis surgery services while 30 health zones require antibiotics, facial cleanliness and environmental improvement interventions. Survey data suggest that trachoma is widespread: further surveys are warranted.

Indexed as

Health SurveysPublic HealthAdolescentChildChild, PreschoolCross-Sectional StudiesDemocratic Republic of the CongoEye Infections, BacterialFemaleHumansInfantMalePrevalenceTrachomaBaseline surveyDemocratic Republic of the CongoGlobal Trachoma Mapping ProjectSAFE strategytrachomatrichiasis

Identifiers

PMID28850014
PMCPMC6319181

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.