ArticleInternational health2023
Explaining the continuing high prevalence of trachomatous trichiasis unknown to the health system in evaluation units: a mixed methods explanatory study in four trachoma-endemic countries.
Article in International health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 5 citations in OpenAlex.
- Monitoring of Chlamydia trachomatis infection and antibodies in low-prevalence districts of Amhara, Ethiopia: Insights from a hyper-endemic trachoma region.PLoS neglected tropical diseases · 2026Article
- Assessing trachoma elimination progress in districts with persistent trachoma, Western Province, Zambia.International health · 2025Article
- Tropical Data: supporting health ministries worldwide to conduct high-quality trachoma surveys.International health · 2025Article
- A secondary analysis to determine countries and districts eligible for documented full geographic coverage for trichiasis case finding and outreaches.International health · 2023Article
- Addressing the challenges of reaching trachoma elimination: leveraging on lessons learnt from programme implementation.International health · 2023Article
Corrections and comments
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Authors and funding
15 authors at 7 institutions in 5 countries.
Funding
Abstract
backgroundWe explored reasons for continuing higher-than-anticipated prevalence of trachomatous trichiasis (TT) unknown to the health system in population-based prevalence surveys in evaluation units where full geographical coverage of TT case finding was reported.
methodsA mixed-methods study in Ethiopia, Kenya, Nigeria and Tanzania was conducted. We compared data from clinical examination, campaign documentation and interviews with original trachoma impact survey (TIS) results.
resultsOf 169 TT cases identified by TIS teams, 130 (77%) were examined in this study. Of those, 90 (69%) were a match (both TIS and study teams agreed on TT classification) and 40 (31%) were a mismatch. Of the 40 mismatches, 22 (55%) were identified as unknown to the health system by the study team but as known to the health system by the TIS team; 12 (30%) were identified as not having TT by the study team but as having TT by the TIS team; and six (15%) were identified as unknown to the health system in the TIS team but as known to the health system by the study team based on documentation reviewed.
conclusionsIncorrectly reported geographical coverage of case-finding activities, and discrepancies in TT status between TIS results and more detailed assessments, are the key reasons identified for continuing high TT prevalence.
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