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Open AccessArticle

Prevalence of Self-Reported Diagnosed Cataract and Associated Risk Factors among Elderly South Africans

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Office of the Deputy Vice Chancellor: Research and Innovation, North West University, Potchefstroom 2520, South Africa
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HIV/AIDS/STI/TB Research Programme, Human Sciences Research Council, Pretoria 0002, South Africa
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Department of Research & Innovation, University of Limpopo, Turfloop 0727, South Africa
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London School of Hygiene and Tropical Medicine, University of London, London WC1E 7HT, UK
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Office of the Deputy Vice Chancellor for Research and Engagement, Nelson Mandela University, Port Elizabeth 6001, South Africa
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2017, 14(12), 1523; https://doi.org/10.3390/ijerph14121523
Received: 16 August 2017 / Revised: 29 November 2017 / Accepted: 30 November 2017 / Published: 6 December 2017
(This article belongs to the Section Global Health)
This paper estimates the prevalence of self-reported cataract and associated risk factors among individuals aged ≥50 years in South Africa. Data from a nationally-representative cross-sectional Study on Global AGEing and Adult Health (SAGE) (N = 3646) conducted in South Africa from 2007–2008 was analyzed. The primary outcome was self-reported cataract, and exposures included socio-demographics, self-reported co-morbidities, and behavioral factors. Linearized multivariate logistic regression models were used. The weighted prevalence of self-reported diagnosed cataract was 4.4% (95%CI: 3.4–5.8). Prevalence was greater among individuals with advancing age (10.2%), higher quality of life (QoL) (5.9%), education (5.2%), and wealth (5.8%) than their counterparts. Prevalence was also higher among individuals with depression (17.5%), diabetes (13.3%), hypertension (9.1%), and stroke (8.4%) compared to those without these conditions, with the exception of obesity (4.2%). In the final multivariate model, the odds of self-reported cataract were: 4.14 times higher among people ≥70 years than 50 to 59 year olds (95%CI: 2.28–7.50); 2.48 times higher in urban than rural residents (95%CI: 1.25–4.92); 5.16, 2.99, and 1.97 times higher for individuals with depression (95%CI: 1.92–13.86), hypertension (95%CI: 1.60–5.59), and diabetes (95%CI: 1.07–3.61), compared to those without these conditions. View Full-Text
Keywords: age-related cataracts; blindness; inequalities; risk factors; SAGE; South Africa; Sub-Saharan Africa; lower middle income countries age-related cataracts; blindness; inequalities; risk factors; SAGE; South Africa; Sub-Saharan Africa; lower middle income countries
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MDPI and ACS Style

Phaswana-Mafuya, N.; Peltzer, K.; Crampin, A.; Ahame, E.; Sokhela, Z. Prevalence of Self-Reported Diagnosed Cataract and Associated Risk Factors among Elderly South Africans. Int. J. Environ. Res. Public Health 2017, 14, 1523.

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