ArticleOphthalmic epidemiology2016
Prevalence of Trachoma in Niger State, North Central Nigeria: Results of 25 Population-Based Prevalence Surveys Carried Out with the Global Trachoma Mapping Project.
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 18 papers.
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.
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.
Who cites it
18 citing papers in PubMed, 20 citations in OpenAlex.
- Scaling trachoma surveillance in endemic areas using machine learning.BMC infectious diseases · 2026Article
- Trachoma Prevalence and Associated WASH and Behavioral Risk Among Rural Communities of North Gondar Zone, Ethiopia: A Community-Based Cross-Sectional Study.Journal of tropical medicine · 2026Article
- Progress towards the elimination of trachoma in Nigeria.International health · 2025Article
- Twenty-Three Population-Based Trachoma Prevalence Surveys in the Central and Northern Regions of Benin, 2018-2022.Ophthalmic epidemiology · 2024Article
- Prevalence of trachoma in Pernambuco State, Brazil (2014-2015).Revista do Instituto de Medicina Tropical de Sao Paulo · 2021Article
- Oculoplastic surgical services in Nigeria: status and challenges.International ophthalmology · 2020Article
- Household Survey of Trachoma among Children Living in Pernambuco, Brazil.Pathogens (Basel, Switzerland) · 2019Article
- The global burden of trichiasis in 2016.PLoS neglected tropical diseases · 2019Article
- Understanding the spatial distribution of trichiasis and its association with trachomatous inflammation-follicular.BMC infectious diseases · 2019Article
- Prevalence of Trachoma and Access to Water and Sanitation in Benue State, Nigeria: Results of 23 Population-Based Prevalence Surveys.Ophthalmic epidemiology · 2018Article
- Prevalence of Trachoma in Kogi State, Nigeria: Results of four Local Government Area-Level Surveys from the Global Trachoma Mapping Project.Ophthalmic epidemiology · 2018Article
- Prevalence of and risk factors for trachoma in Kwara state, Nigeria: Results of eight population-based surveys from the Global Trachoma Mapping Project.Ophthalmic epidemiology · 2018Article
- Prevalence of trachoma in the area councils of the Federal Capital Territory, Nigeria: results of six population-based surveys.Ophthalmic epidemiology · 2018Article
- Impact Survey Results after SAFE Strategy Implementation in 15 Local Government Areas of Kebbi, Sokoto and Zamfara States, Nigeria.Ophthalmic epidemiology · 2018Article
- Prevalence of trachoma in 13 Local Government Areas of Taraba State, Nigeria.Ophthalmic epidemiology · 2018Article
- Sanitation and water supply coverage thresholds associated with active trachoma: Modeling cross-sectional data from 13 countries.PLoS neglected tropical diseases · 2018Article
- The cost of mapping trachoma: Data from the Global Trachoma Mapping Project.PLoS neglected tropical diseases · 2017Article
- Prevalence of Trachoma in Northern Benin: Results from 11 Population-Based Prevalence Surveys Covering 26 Districts.Ophthalmic epidemiology · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
18 authors at 6 institutions in 3 countries.
Funding
Abstract
purposeTo determine the prevalence of trachoma in each of the 25 local government areas (LGAs) of Niger State, Nigeria.
methodsA population-based cross-sectional survey was conducted in each Niger State LGA between March and April 2014, as part of the Global Trachoma Mapping Project (GTMP). GTMP protocols were used in planning and conduct of the surveys. Using probability proportional to size, 25 clusters were selected; in each of these clusters, 25 households were enrolled for the survey. All residents aged 1 year and older were examined by GTMP-certified graders for trachomatous inflammation - follicular (TF) and trichiasis using the World Health Organization simplified grading scheme. Additionally, we collected data on household water and sanitation facilities.
resultsOnly one LGA (Kontagora) had TF prevalence in 1-9-year-olds above 10%; one other LGA (Rafi) had TF prevalence between 5.0 and 9.9%. Six LGAs need trichiasis surgical services provided to achieve a prevalence of <1 case of trichiasis per 1000 total population. The proportion of households with access to improved water sources ranged from 23 to 100%, while household-level access to improved latrines ranged from 8 to 100% across the LGAs.
conclusionThe prevalence of trachoma is relatively low in most of Niger State. There is a need for community-based trichiasis surgical services in a small number of LGAs. The trachoma elimination program could engage water and sanitation agencies to augment access to improved water and sanitation facilities, for human rights reasons. Kontagora and Rafi need community-based interventions to reduce the prevalence of active trachoma.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.