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Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán

2009, Number 5

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Rev Invest Clin 2009; 61 (5)

Indoor pollution as an occupational risk factor for tuberculosis among women: a population-based, gender oriented, case-control study in Southern Mexico

García-Sancho MC, García-García L, Báez-Saldaña R, Ponce-de-León A, Sifuentes-Osornio J, Bobadilla-del-Valle M, Ferreyra-Reyes L, Cano-Arellano B, Canizales-Quintero S, Palacios-Merino LC, Juárez-Sandino L, Ferreira-Guerrero E, Cruz-Hervert LP, Small PM, Pérez-Padilla JR

Language: English
References: 34
Page: 392-398
PDF size: 63.85 Kb.


ABSTRACT

Background. Indoor air pollution produced by biomass cooking fuels in developing countries has been associated with acute and chronic lower respiratory diseases, but has not been identified as an occupational exposure among women. Objective. To examine the relationship between the use of biomass cooking fuels (mainly wood) and tuberculosis (TB) among women living in rural areas in Southern Mexico. Methods. We conducted a population based case-control study in the health jurisdiction of Orizaba, Mexico. Cases were all incident female pulmonary TB patients, with Mycobacterium tuberculosis in sputum, living in communities with fewer than 15 000 inhabitants, diagnosed between March 1995 and April 2003. Woodsmoke exposure was assessed by applying a standardized questionnaire (ATS-DLD-78 questionnaire). Controls were randomly selected from sex-matched neighbors. Appropriate IRB approval was obtained. Results. 42 TB cases and 84 community controls were recruited. Multivariate assessment showed that more than 20 years of exposure to smoke from biomass fuels was three times more frequent among cases than among controls [Odds ratio (OR): 3.3, 95% confidence interval (CI):1.06-10.30, p = 0.03], after controlling for age, body mass, household crowding, years of formal education and tobacco use. Conclusions. We found a strong association between the use of biomass cooking fuels and tuberculosis among women in a community-based, case-control study. Results of this study are intended to provide evidence to policy makers, community leaders and the general public on the importance of implementing gender oriented interventions that decrease the use of biomass fuels in poor communities in developing countries.


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