Prevalence of Trachomatous Trichiasis in Ten Evaluation Units of Embu and Kitui Counties, Kenya.

Autor:	Ilako D; Department of Ophthalmology, University of Nairobi, Nairobi, Kenya., Barasa E; Ophthalmic Services Unit, Ministry of Health, Nairobi, Kenya., Gichangi M; Ophthalmic Services Unit, Ministry of Health, Nairobi, Kenya., Mwatha S; Neglected Tropical Diseases Unit, Ministry of Health, Nairobi, Kenya., Watitu T; Neglected Tropical Diseases Unit, Ministry of Health, Nairobi, Kenya., Bore J; Kenya National Bureau of Statistics, Ministry of Planning, Nairobi, Kenya., Rajamani A; Clinical Research Department, London School of Hygiene & Tropical Medicine, London, UK., Butcher R; Clinical Research Department, London School of Hygiene & Tropical Medicine, London, UK., Flueckiger RM; RTI International, Atlanta, GA, USA., Bakhtiari A; Task Force for Global Health, Atlanta, GA, USA., Willis R; Task Force for Global Health, Atlanta, GA, USA., Solomon AW; Department of Control of Neglected Tropical Diseases, World Health Organization, Geneva, Switzerland., Harding-Esch EM; Clinical Research Department, London School of Hygiene & Tropical Medicine, London, UK., Matendechero SH; Neglected Tropical Diseases Unit, Ministry of Health, Nairobi, Kenya.
Jazyk:	angličtina
Zdroj:	Ophthalmic epidemiology [Ophthalmic Epidemiol] 2023 Dec; Vol. 30 (6), pp. 591-598. Date of Electronic Publication: 2022 Jan 17.
DOI:	10.1080/09286586.2021.1986549
Abstrakt:	Background: Late-stage blinding sequalae of trachoma such as trachomatous trichiasis (TT) typically take decades to develop and often do so in the absence of ongoing ocular Chlamydia trachomatis infection. This suggests that most TT risk accumulates in early life; as a result, population-level TT incidence and prevalence can remain high years after C. trachomatis transmission among children has decreased. In Embu and Kitui counties, Kenya, the prevalence of trachomatous inflammation - follicular is low in children. In this survey, we set out to determine the prevalence of TT in ten evaluation units (EUs) in these counties. Methods: We undertook ten cross-sectional prevalence surveys for TT. In each EU, people aged ≥15 years were selected by a two-stage cluster sampling method and examined for TT. Those with TT were asked questions on whether they had been offered management for it. Prevalence was adjusted to the underlying age and gender structure of the population. Results: A total of 18,987 people aged ≥15 years were examined. Per EU, the median number of examined participants was 1,656 (range: 1,451 - 3,016) and median response rate was 86% (range: 81 - 95%). The prevalence of TT unknown to the health system in people aged ≥15 years was above the threshold for elimination (≥0.2%) in all ten EUs studied (range: 0.2-0.7%). TT was significantly more common in older than younger individuals and in women than in men. Discussion: Provision of surgical services should be strengthened in Embu and Kitui counties of Kenya to achieve the World Health Organization threshold for eliminating TT as a public health problem.
Databáze:	MEDLINE
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