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Comorbidity of respiratory and cardiovascular diseases among the elderly residing close to mine dumps in South Africa: A cross-sectional study.

V Nkosi, J Wichmann, K Voyi

Abstract


Background. Pollution arising from mine dumps in South Africa (SA) has been a source of concern to nearby communities.

Objectives. To investigate whether comorbidity of respiratory and cardiovascular diseases among elderly persons (≥55 years) was associated with proximity to mine dumps.

Methods. Elderly persons in communities 1 - 2 km (exposed) and ≥5 km (unexposed) from five preselected mine dumps in Gauteng and North West provinces in SA were included in a cross-sectional study.

Results. Exposed elderly persons had a significantly higher prevalence of cardiovascular and respiratory diseases than those who were unexposed. Multiple logistic regression analysis indicated that living close to mine dumps was significantly associated with asthma + hyper- tension (odds ratio (OR) 1.67; 95% confidence interval (CI) 1.22 - 2.28), asthma + pneumonia (OR 1.86; 95% CI 1.14 - 3.04), emphysema + arrhythmia (OR 1.38; 95% CI 1.07 - 1.77), emphysema + myocardial infarction (OR 2.01; 95% CI 1.73 - 2.54), emphysema + pneumonia (OR 3.36; 95% CI 1.41 - 7.98), hypertension + myocardial infarction (OR 1.60; 95% CI 1.04 - 2.44) and hypertension + pneumonia (OR 1.34; 95% CI 1.05 - 1.93).

Conclusion. Detrimental associations between comorbidity of the health outcomes and proximity to mine dumps were observed among the elderly in SA. 



Authors' affiliations

V Nkosi, School of Health Systems and Public Health, Faculty of Health Sciences, University of Pretoria, South Africa

J Wichmann, School of Health Systems and Public Health, Faculty of Health Sciences, University of Pretoria, South Africa

K Voyi, School of Health Systems and Public Health, Faculty of Health Sciences, University of Pretoria, South Africa

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Keywords

Mine dumps; Comorbidity; Respiratory diseases; Cardiovascular diseases; Cross-sectional study; South Africa

Cite this article

South African Medical Journal 2016;106(3):290-297. DOI:10.7196/SAMJ.2016.v106i3.10243

Article History

Date submitted: 2015-10-21
Date published: 2016-02-03

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