What is the appropriate age range of individuals to be included in a survey to. estimate the prevalence of trachomatous trichiasis?
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Date
2013Author
Jefitha, Karimurio
Hillary, Rono
Mesurier, Richard Le
Mwanthi, Mutuku
Keeffe, Jill
Type
ArticleLanguage
enMetadata
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Introduction A survey to determine the prevalence of trachomatous trichiasis (Tl] requires a large sample size and the recommended participant age is 2': 15 years. This study sought to establish the appropriate age range of individuals to be included in Tl surveys.
Methods Data from six previous surveys of adults
2': 15 years old were reanalysed.
Results Reanalysis indicated that 69.6-93.3% (average 87.0%) of untreated n occurred in those aged
40+ years and 52.2-86.7% (average 73.1%) in those aged 50 + years (age 2':50 years is used in rapid assessment of avoidable blindness). Age 2':40 years was adopted in a Tl survey conducted in Turkana district because it allowed a smaller sample size than age 2':15 years.
Conclusions The estimated backlog of untreated Tl in people aged 2':40 years old in Turkana was 5932 and the overall n backlog was likely to be 6358-8523. These findings cannot be generalised because all surveys were carried out in the same country.
Citation
Global issuesPublisher
group.bmj.com Department of Community Health, University of Nairobi, Northern Rift Valley Zonal Eye Unit, Kitale, Kenya 'Department of Ophthalmology, University of Melbourne/Centre for Eye Researc h Australia, Melbourne, Victoria, Australia
Description
What is the appropriate age range of individuals to be included in a survey to. estimate the prevalence of trachomatous trichiasis?
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- Faculty of Health Sciences (FHS) [10378]