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. 2018 Dec;25(sup1):201-210.
doi: 10.1080/09286586.2017.1351996. Epub 2017 Sep 14.

The Epidemiology of Trachoma in Mozambique: Results of 96 Population-Based Prevalence Surveys

Affiliations

The Epidemiology of Trachoma in Mozambique: Results of 96 Population-Based Prevalence Surveys

Mariamo Abdala et al. Ophthalmic Epidemiol. 2018 Dec.

Abstract

Purpose: Surveys are needed to guide trachoma control efforts in Mozambique, with WHO guidelines for intervention based on the prevalence of trachomatous inflammation-follicular (TF) in children aged 1-9 years and the prevalence of trichiasis in adults aged 15 years and above. We conducted surveys to complete the map of trachoma prevalence in Mozambique.

Methods: Between July 2012 and May 2015, we carried out cross-sectional surveys in 96 evaluation units (EUs) covering 137 districts.

Results: A total of 269,217 individuals were enumerated and 249,318 people were examined using the WHO simplified trachoma grading system. Overall, 102,641 children aged 1-9 years, and 122,689 individuals aged 15 years and above were examined. The prevalence of TF in children aged 1-9 years was ≥10% in 12 EUs, composed of 20 districts, covering an estimated total population of 2,455,852. These districts require mass distribution of azithromycin for at least 3 years before re-survey. The TF prevalence in children was 5.0-9.9% in 17 EUs (28 districts, total population 3,753,039). 22 EUs (34 districts) had trichiasis prevalences ≥0.2% in adults 15 years and above, and will require public health action to provide surgical services addressing the backlog of trichiasis. Younger age, more children resident in the household, and living in a household that had an unimproved latrine or no latrine facility, were independently associated with an increased odds of TF in children aged 1-9 years.

Conclusions: Trachoma represents a significant public health problem in many areas of Mozambique.

Keywords: Mozambique; Trachoma; prevalence; survey.

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Figures

Figure 1.
Figure 1.
Prevalence of trachomatous inflammation–follicular (TF) in those aged 1–9 years in 96 population-based prevalence surveys, Mozambique, 2012–2015.
Figure 2.
Figure 2.
Prevalence of trichiasis in those aged 15 years and above in 96 population-based prevalence surveys, Mozambique, 2012–2015. In 14 evaluation units (hatched), prevalence categories shown are for trachomatous trichiasis (TT), defined as trichiasis and (in the same eye) either (a) trachomatous conjunctival scarring (TS); or (b) the examiner’s inability to evert the eyelid to look for TS (with the difficulty in eversion presumed to be due to TS). In the other 82 evaluation units, prevalence categories shown are for all-trichiasis, regardless of the presence or absence of TS.

References

    1. Mabey DCW, Solomon AW, Foster A.. Trachoma. Lancet (London, England). 2003;362(9379):223–229. doi:10.1016/S0140-6736(03)13914-1. - DOI - PubMed
    1. Mabey D, Fraser-Hurt N. Trachoma. Clin Evid (Online). 2004;(11):880–891. - PubMed
    1. Smith JL, Flueckiger RM, Hooper PJ, et al. The geographical distribution and burden of trachoma in Africa. PLoS Negl Trop Dis. 2013;7(8). doi:10.1371/journal.pntd.0002359. - DOI - PMC - PubMed
    1. Stocks ME, Ogden S, Haddad D, Addiss DG, McGuire C, Freeman MC. Effect of water, sanitation, and hygiene on the prevention of trachoma: a systematic review and meta-analysis. PLoS Med. 2014;11(2):e1001605. doi:10.1371/journal.pmed.1001605. - DOI - PMC - PubMed
    1. Emerson PM, Burton M, Solomon AW, Bailey R, Mabey D. The SAFE strategy for trachoma control: using operational research for policy, planning and implementation. Bull World Health Organ. 2006;84(8):613–619. doi:10.2471/BLT.05.28696. - DOI - PMC - PubMed

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