alexa Predictors of chronic bronchitis in South African adults.
Infectious Diseases

Infectious Diseases

Journal of AIDS & Clinical Research

Author(s): Ehrlich RI, White N, Norman R, Laubscher R, Steyn K, , Ehrlich RI, White N, Norman R, Laubscher R, Steyn K,

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Abstract SETTING: National household survey of adults in South Africa, a middle income country. OBJECTIVE: To determine the prevalence and predictors of chronic bronchitis. DESIGN: A stratified national probability sample of households was selected. All adults in the selected households were interviewed. Chronic bronchitis was defined as chronic productive cough. Socio-demographic predictors were wealth, education, race, age and urban residence. Personal and exposure variables included history of tuberculosis, domestic exposure to smoky fuels, occupational exposures, smoking and body mass index. RESULTS: The overall prevalence of chronic bronchitis was 2.3\% in men and 2.8\% in women. The strongest predictor of chronic bronchitis was a history of tuberculosis (men, odds ratio [OR] 4.9; 95\% confidence interval [CI] 2.6-9.2; women, OR 6.6; 95\%CI 3.7-11.9). Other risk factors were smoking, occupational exposure (in men), domestic exposure to smoky fuel (in women) and (in univariate analysis only) being underweight. Wealth and particularly education were protective. CONCLUSION: The pattern of chronic bronchitis in South Africa suggests a combination of risk factors that includes not only smoking but also tuberculosis, occupational exposures in men and domestic fuel exposure in women. Control of these risk factors requires public health action across a broad front. The protective role of education requires elucidation.
This article was published in Int J Tuberc Lung Dis and referenced in Journal of AIDS & Clinical Research

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