Mwangi, Grace; Harding-Esch, Emma; Kabona, George; Watitu, Titus; Mpyet, Caleb; Gemechu, Alemu; Abdeta, Alemayehu; Wamyil-Mshelia, Teyil; Ajege, Grace; Kelly, Michaela; +5 more... Abony, Maurice; Otinda, Peter; Chege, Moses; Courtright, Paul; Geneau, Robert; (2023) 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. International health, 15 (Sup 2). ii44-ii52. ISSN 1876-3413 DOI: https://doi.org/10.1093/inthealth/ihad085
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Abstract
BACKGROUND: We 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. METHODS: A 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. RESULTS: Of 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. CONCLUSIONS: Incorrectly 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.
Item Type | Article |
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Faculty and Department | Faculty of Infectious and Tropical Diseases > Dept of Clinical Research |
PubMed ID | 38048377 |
Elements ID | 212794 |
Official URL | http://dx.doi.org/10.1093/inthealth/ihad085 |
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Filename: Explaining the continuing high prevalence of trachomatous trichiasis unknown to the health system in evaluation units a mixe.pdf
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