The Brazilian Amazon Region Eye Survey: Design and Methods

The Brazilian Amazon Region Eye Survey: Design and Methods

Author Salomao, Solange R. Autor UNIFESP Google Scholar
Furtado, Joao Marcello Autor UNIFESP Google Scholar
Berezovsky, Adriana Autor UNIFESP Google Scholar
Cavascan, Nivea N. Autor UNIFESP Google Scholar
Ferraz, Alberto N. Autor UNIFESP Google Scholar
Cohen, Jacob M. Google Scholar
Munoz, Sergio Google Scholar
Belfort, Rubens, Jr. Autor UNIFESP Google Scholar
Abstract Purpose: To describe the study design, operational strategies, procedures, and baseline characteristics of the Brazilian Amazon Region Eye Survey (BARES), a population-based survey of the prevalence and causes of distance and near visual impairment and blindness in older adults residing in the city of Parintins. Methods: Cluster sampling, based on geographically defined census sectors, was used for cross-sectional random sampling of persons 45 years and older from urban and rural areas. Subjects were enumerated through a door-to-door survey and invited for measurement of uncorrected, presenting and best-corrected visual acuity and an ocular examination. Results: Of 9931 residents (5878 urban and 4053 rural), 2384 individuals (1410 urban and 974 rural) were eligible and 2041 (1180 urban and 861 rural) had a clinical examination (response rate 85.6%). The majority of participants were female (1041, 51.0%) the average age was 59.9 +/- 11.1 years (60.2 +/- 11.2 years for urban and 59.4 +/- 11.1 years for rural) 1360 (66.6%) had primary schooling or less (58.1% in urban and 78.4% in rural) and 57.8% were resident in urban areas. The age distribution between sexes was similar (p = 0.178). Both sex and age distributions of the sample were comparable to that of the Brazilian Amazon Region population. Conclusions: The BARES cohort will provide information about the prevalence and causes of near and distance vision in this underprivileged and remote population in Brazil.
Keywords Adults
baseline characteristics
Brazilian Amazon
population-based study
visual impairment
Language English
Sponsor Conselho Nacional de Pesquisa e Desenvolvimento Tecnológico, CNPq, Brasilia, Brasil, Science Without Borders grant
Lions Club International Foundation, Sight First Grant
Fundação de Amparo a Pesquisa do Estado de São Paulo (FAPESP)
Grant number CNPq: 402120/2012-4]
Lions Club International Foundation: SF1758/UND
FAPESP: 2013/16397-7
Date 2017
Published in Ophthalmic Epidemiology. Philadelphia, v. 24, n. 4, p. 257-264, 2017.
ISSN 0928-6586 (Sherpa/Romeo, impact factor)
Publisher Taylor & Francis Inc
Extent 257-264
Access rights Closed access
Type Article
Web of Science ID WOS:000405399900008

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