The Global Trachoma Mapping Project: Methodology of a 34-Country Population-Based Study.
| Title: | The Global Trachoma Mapping Project: Methodology of a 34-Country Population-Based Study. |
|---|---|
| Authors: | Solomon AW; Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine , London , UK .; Pavluck AL; Courtright P; Aboe A; Adamu L; Alemayehu W; Alemu M; Alexander ND; Kello AB; Bero B; Brooker SJ; Chu BK; Dejene M; Emerson PM; Flueckiger RM; Gadisa S; Gass K; Gebre T; Habtamu Z; Harvey E; Haslam D; King JD; Mesurier RL; Lewallen S; Lietman TM; MacArthur C; Mariotti SP; Massey A; Mathieu E; Mekasha A; Millar T; Mpyet C; Muñoz BE; Ngondi J; Ogden S; Pearce J; Sarah V; Sisay A; Smith JL; Taylor HR; Thomson J; West SK; Willis R; Bush S; Haddad D; Foster A |
| Source: | Ophthalmic epidemiology [Ophthalmic Epidemiol] 2015; Vol. 22 (3), pp. 214-25. |
| Publication Type: | Journal Article; Research Support, Non-U.S. Gov't |
| Language: | English |
| Journal Info: | Publisher: Informa Healthcare Country of Publication: England NLM ID: 9435674 Publication Model: Print Cited Medium: Internet ISSN: 1744-5086 (Electronic) Linking ISSN: 09286586 NLM ISO Abbreviation: Ophthalmic Epidemiol Subsets: MEDLINE |
| Imprint Name(s): | Publication: London : Informa Healthcare; Original Publication: Buren, The Netherlands : Aeolus Press, c1994- |
| MeSH Terms: | Global Health*; Endemic Diseases/*statistics & numerical data ; Trachoma/*epidemiology ; Trichiasis/*epidemiology; Blindness/prevention & control ; Hygiene/standards ; Sanitation/standards ; Water Supply/standards ; Adolescent ; Child ; Child, Preschool ; Cluster Analysis ; Community Health Planning ; Female ; Health Surveys ; Humans ; Infant ; Male ; Prevalence |
| Abstract: | Purpose: To complete the baseline trachoma map worldwide by conducting population-based surveys in an estimated 1238 suspected endemic districts of 34 countries.; Methods: A series of national and sub-national projects owned, managed and staffed by ministries of health, conduct house-to-house cluster random sample surveys in evaluation units, which generally correspond to "health district" size: populations of 100,000-250,000 people. In each evaluation unit, we invite all residents aged 1 year and older from h households in each of c clusters to be examined for clinical signs of trachoma, where h is the number of households that can be seen by 1 team in 1 day, and the product h × c is calculated to facilitate recruitment of 1019 children aged 1-9 years. In addition to individual-level demographic and clinical data, household-level water, sanitation and hygiene data are entered into the purpose-built LINKS application on Android smartphones, transmitted to the Cloud, and cleaned, analyzed and ministry-of-health-approved via a secure web-based portal. The main outcome measures are the evaluation unit-level prevalence of follicular trachoma in children aged 1-9 years, prevalence of trachomatous trichiasis in adults aged 15 + years, percentage of households using safe methods for disposal of human feces, and percentage of households with proximate access to water for personal hygiene purposes.; Results: In the first year of fieldwork, 347 field teams commenced work in 21 projects in 7 countries.; Conclusion: With an approach that is innovative in design and scale, we aim to complete baseline mapping of trachoma throughout the world in 2015. |
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| Grant Information: | 100714 United Kingdom WT_ Wellcome Trust; MR/K012126/1 United Kingdom MRC_ Medical Research Council |
| Contributed Indexing: | Keywords: Blindness; mHealth; prevalence study; trachoma; trichiasis |
| Entry Date(s): | Date Created: 20150710 Date Completed: 20160310 Latest Revision: 20250529 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC4687001 |
| DOI: | 10.3109/09286586.2015.1037401 |
| PMID: | 26158580 |
| Database: | MEDLINE |
Journal Article; Research Support, Non-U.S. Gov't