Author(s): Mishra VK, Retherford RD, Smith KR
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Abstract OBJECTIVES: To examine the relation between use of biomass cooking fuels (wood or dung) and prevalence of active tuberculosis in India. METHODS: The analysis is based on 260,162 persons age 20 and over in India's 1992-93 National Family Health Survey. Logistic regression is used to estimate the effects of biomass fuel use on prevalence of active tuberculosis, as reported by household heads, after controlling for a number of potentially confounding variables. RESULTS: Persons living in households that primarily use biomass for cooking fuel have substantially higher prevalence of active tuberculosis than persons living in households that use cleaner fuels (odds ratio [OR] = 3.56; 95\% confidence interval [CI] = 2.82-4. 50). This effect is reduced somewhat when availability of a separate kitchen, house type, indoor crowding, age, gender, urban or rural residence, education, religion, caste or tribe, and geographic region are statistically controlled (OR = 2.58; 95\% CI = 1.98-3.37). Fuel type also has a large effect when the analysis is done separately for men (OR = 2.46; 95\% CI = 1.79-3.39) and women (OR = 2. 74; 95\% CI = 1.86-4.05) and separately for urban areas (OR = 2.29; 95\% CI = 1.61-3.23) and rural areas (OR = 2.65; 95\% CI = 1.74-4.03). The analysis also indicates that, among persons age 20 years and over, 51\% of the prevalence of active tuberculosis is attributable to cooking smoke. CONCLUSIONS: Results strongly suggest that use of biomass fuels for cooking substantially increases the risk of tuberculosis in India.
This article was published in Int J Infect Dis
and referenced in Journal of Civil & Environmental Engineering