Rationale, methods and baseline demographics of the Bhaktapur Glaucoma Study
Rationale, methods and baseline demographics of the Bhaktapur Glaucoma Study
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DOI:
10.1111/j.1442-9071.2010.02429.x
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发表时间:
2011-03-01
影响因子:
4
通讯作者:
van Rens, Ger
中科院分区:
文献类型:
--
作者:
Thapa, Suman S.;Rana, Pooja P.;van Rens, Ger
P>Background:To describe the methodology and baseline data of a population-based study designed to determine the prevalence of glaucoma and to study the risk factors for glaucoma development in a Nepali population.Design:Population-based cross-sectional studyParticipants:Subjects 40 years and above residing in Bhaktapur District.Patients and Methods:Power calculations suggest that a sample size of 4758 is required. Thirty clusters were randomly selected from the 2 municipalities and 16 Village Development Committees of Bhaktapur District in Nepal. A door-to-door census was conducted in the selected clusters to identify citizens 40 years of age and older. Demographic details were collected and a structured interview, regarding awareness for cataract and glaucoma was taken. All individuals fulfilling the eligibility criteria were recruited and referred to the Tilganga Institute of Ophthalmology in Kathmandu for a detailed clinical examination including glaucoma diagnostic procedures. Peripheral blood samples were taken to facilitate future genetic analysis.Main Outcome Measures:Prevalence of glaucoma, risk factors and genetic screening.Results:A total of 4800 people were selected. The mean age of participants was 55.4 +/- 12.3 years (range: 40-99) and 51.8% were female. In total, 64.8% of our cohort was aged less than 59 years and 60.5% were illiterate. Among the various ethnic races, 69.7% belonged to the Newar ethnic group.Conclusion:This study will determine the prevalence of glaucoma and allow for an increased understanding of the risk factors for glaucoma development in this region.