ReviewOphthalmic epidemiology
A diagnostic instrument to help field graders evaluate active trachoma.
Review in Ophthalmic epidemiology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 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
36 citing papers in PubMed, 41 citations in OpenAlex.
- Impact of two rounds of azithromycin mass drug administration on active trachoma and ocular Chlamydia trachomatis infection in Naoero.PLoS neglected tropical diseases · 2026Article
- Discrepancy Between Active Trachoma and Tests of Chlamydial Infection in Alto Amazonas, Peru.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2026Article
- Does persistent active trachoma mandate antibiotic mass drug administration? A comparison of prevalence of trachomatous inflammation-follicular with that of conjunctival infection and anti-chlamydial antibodies, Western Province, Zambia.International health · 2026Article
- Trachoma prevalence surveys in 15 indigenous and non-indigenous evaluation units in Brazil, 2018-2023.International health · 2026Observational
- Assessing trachoma elimination progress in districts with persistent trachoma, Western Province, Zambia.International health · 2025Article
- Surveys to substantiate elimination of trachoma as a public health problem in the Republic of the Union of Myanmar.International health · 2025Article
- The prevalence of trachoma, ocular Chlamydia trachomatis infection and anti-Pgp3 antibodies in Choiseul Province, Solomon Islands.PLoS neglected tropical diseases · 2025Article
- Tropical Data: supporting health ministries worldwide to conduct high-quality trachoma surveys.International health · 2025Article
- Impact of trachoma elimination efforts in afar regional state, Ethiopia: survey findings from 26 evaluation units.BMC infectious diseases · 2025Article
- Progress Towards Elimination of Trachoma in Kenya 2017-2020.Ophthalmic epidemiology · 2024Article
- Trachoma Impact Survey Results from 31 Woredas in Tigray Region, Ethiopia.Ophthalmic epidemiology · 2024Article
- Prevalence of Trachoma After Three Rounds of Antibiotic Mass Drug Administration in 13 Woredas of Gambella Region, Ethiopia.Ophthalmic epidemiology · 2024Article
- Twenty-Three Population-Based Trachoma Prevalence Surveys in the Central and Northern Regions of Benin, 2018-2022.Ophthalmic epidemiology · 2024Article
- Ongoing transmission of trachoma in low prevalence districts in Mozambique: results from four cross-sectional enhanced impact surveys, 2022.Scientific reports · 2024Article
- Determinants of active trachoma among rural children aged 1-9 years old in Aw-Bare Wereda, Somali Region of Ethiopia: a cross-sectional study.Journal of health, population, and nutrition · 2024Article
- Accuracy, acceptability and feasibility of photography for use in trachoma surveys: a mixed methods study in Tanzania.International health · 2024Article
- High prevalence of trachomatous inflammation-follicular with no trachomatous trichiasis: can alternative indicators explain the epidemiology of trachoma in Côte d'Ivoire?International health · 2023Article
- Prevalence of trachoma in Somali region, Ethiopia: results from trachoma impact surveys in 50 woredas.International health · 2023Article
- Prevalence of Trachoma in 72 Districts of Afghanistan in 2018-2019: Results of 35 Population-based Prevalence Surveys.Ophthalmic epidemiology · 2023Article
- Baseline Prevalence of Trachoma in 13 Local Government Areas of Borno State, Nigeria.Ophthalmic epidemiology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
Abstract
The SAFE strategy (Surgery for trichiasis, mass treatment with Antibiotics to clear ocular Chlamydia trachomatis infection, and Facial cleanliness and Environmental improvement to reduce transmission) is being used to eliminate trachoma as a public health problem. Decisions on whether or not to implement the A, F, and E components of SAFE are made on the basis of the prevalence of trachomatous inflammation-follicular (TF) in 1-9-year-olds. TF has a precise definition: at least five follicles, each of which is at least 0.5-mm diameter, in the central part of the upper tarsal conjunctiva. Determining whether a follicle has a diameter ≥0.5mm is difficult using magnifying loupes alone. We have developed an ultra-low-cost solution: a follicle size guide that takes the form of a durable printed adhesive sticker which can be fixed to graders' thumb nails for direct size comparison. This tool will be made available to health ministries free of charge. It is anticipated to simplify grader training, increase grader trainee pass rates, and prevent in-service diagnostic drift after training is complete.
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.