Completing Baseline Mapping of Trachoma in Uganda: Results of 14 Population-Based Prevalence Surveys Conducted in 2014 and 2018.

Ophthalmic Epidemiology
Gilbert BaayendaJeremiah M Ngondi

Abstract

We aimed to estimate the prevalence of trachomatous inflammation-follicular (TF) in children aged 1-9 years, trichiasis in adults aged ≥15 years, and water and sanitation (WASH) indicators in 12 suspected-endemic districts in Uganda. Surveys were undertaken in 14 evaluation units (EUs) covering 12 districts. Districts were selected based on a desk review in 2014 (four districts) and trachoma rapid assessments in 2018 (eight districts). We calculated that 1,019 children aged 1-9 years were needed in each EU to estimate TF prevalence with acceptable precision and used three-stage cluster sampling to select 30 households in each of 28 (2014 surveys) or 24 (2018 surveys) villages. Participants living in selected households aged ≥1 year were examined for trachoma; thus enabling estimation of prevalences of TF in 1-9 year-olds and trichiasis in ≥15 year-olds. Household-level WASH access data were also collected. A total of 11,796 households were surveyed; 22,465 children aged 1-9 years and 24,652 people aged ≥15 years were examined. EU-level prevalence of TF ranged from 0.3% (95% confidence interval [CI] 0.1-0.7) to 3.9% (95% CI 2.1-5.8). EU-level trichiasis prevalence ranged from 0.01% (95% CI 0-0.11) to 0.81% (95% CI 0.35-1.50). Ov...Continue Reading

References

Mar 11, 2009·Bulletin of the World Health Organization·Jeremiah NgondiPaul Emerson
Apr 14, 2009·Transactions of the Royal Society of Tropical Medicine and Hygiene·Elizabeth A CromwellPaul M Emerson
Jul 15, 2015·Ophthalmic Epidemiology·Anthony W SolomonAllen Foster
Oct 25, 2016·Ophthalmic Epidemiology·Upendo J MwingiraJeremiah M Ngondi
Aug 30, 2017·Ophthalmic Epidemiology·Janvier Kilangalanga For The Global Trachoma Mapping Project
Jul 25, 2018·The American Journal of Tropical Medicine and Hygiene·Anthony W Solomon For The Global Trachoma Mapping Project
Feb 27, 2019·Ophthalmic Epidemiology·Nguyen Xuan HiepUNKNOWN Global Trachoma Mapping Project

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Citations

Oct 16, 2021·PloS One·Seungman ChaHassan Ahmed Hassan Ahmed Ismail

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Methods Mentioned

BETA
MDA

Software Mentioned

R Foundation for Statistical Computing
R
GTMP
Tropical

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