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Prevalence of Trachoma in Kano State, Nigeria: Results of 44 Local Government Area-Level Surveys.

Abstract

PURPOSE: We sought to determine the prevalence of trachoma in 44 Local Government Areas (LGAs) of Kano State, Nigeria.

METHODS: A population-based prevalence survey was conducted in each Kano LGA. We used a two-stage systematic and quasi-random sampling strategy to select 25 households from each of 25 clusters in each LGA. All consenting household residents aged 1 year and above were examined for trachomatous inflammation-follicular (TF), trachomatous inflammation-intense (TI) and trichiasis.

RESULTS: State-wide crude prevalence of TF in persons aged 1-9 years was 3.4% (95% CI 3.3-3.5%), and of trichiasis in those aged ≥15 years was 2.3% (95% CI 2.1-2.4%). LGA-level age- and sex-adjusted trichiasis prevalence in those aged ≥15 years ranged from 0.1% to 2.9%. All but 4 (9%) of 44 LGAs had trichiasis prevalences in adults above the elimination threshold of 0.2%. State-wide prevalence of trichiasis in adult women was significantly higher than in adult men (2.6% vs 1.8%; OR = 1.5, 95% CI 1.3-1.7; p = 0.001). Four of 44 LGAs had TF prevalences in 1-9 year-olds between 10 and 15%, while another six LGAs had TF prevalences between 5 and 9.9%. In 37 LGAs, >80% of households had access to water within 30 minutes round-trip, but household latrine access was >80% in only 19 LGAs.

CONCLUSION: Trichiasis is a public health problem in most LGAs in Kano. Surgeons need to be trained and deployed to provide community-based trichiasis surgery, with emphasis on delivery of such services to women. Antibiotics, facial cleanliness and environmental improvement are needed in 10 LGAs.

More information

Type
Journal Article
Author
Mpyet C
Muhammad N
Adamu MD
Muazu H
Umar MM
Goyol M
Yahaya HB
Onyebuchi U
Ogoshi C
Hussaini T
Isiyaku S
William A
Flueckiger RM
Chu BK
Willis R
Pavluck AL
Olobio N
Phelan S
Macleod C
Solomon AW
Year of Publication
2017
Journal
Ophthalmic epidemiology
Number of Pages
1-9
Language
eng
ISSN Number
1744-5086
DOI
10.1080/09286586.2016.1265657
Alternate Journal
Ophthalmic Epidemiol
Publication Language
eng
Regional focus