Wood smoke exposure and lung adenocarcinoma in non-smoking Mexican women
METHODS: We reviewed records of hospitalized pa-tients at a chest referral hospital in Mexico City and identified 113 histologically proven lung adenocarcinoma cases in non-smoking women. Four control groups of non-smoking women were also selected: 99 patients with pulmonary tuberculosis (PTB), 110 with interstitial lung disease (ILD), 64 with miscellaneous pulmonary conditions (MISC), and the three control groups combined (COMB) (n = 273).
RESULTS: Exposure was assessed on the basis of questionnaire responses at the time of hospital admission. Exposure to wood smoke for more than 50 years, but not for shorter periods, was associated with lung cancer after adjusting for age, education, socio-economic status and environmental tobacco smoke (ETS) exposure. Adjusted odds ratios from the multivariable logistic regression models were 1.4 (95%CI 0.6–2.0) for cases vs. TB controls, 1.9 (95%CI 0.9–4.0) for cases vs. ILD controls, 2.6 (95%CI 1.0–6.3) for cases vs. MISC controls and 1.9 (95%CI 1.1–3.5) for cases vs. COMB controls.
CONCLUSION: These findings suggest that long-term exposure to wood smoke from cooking may contribute to the development of lung cancer.
Document Type: Regular Paper
Affiliations: 1: Department of Tuberculosis Control, British Columbia Centre for Disease Control, Vancouver, Canada 2: School of Occupational and Environmental Hygiene, University of British Columbia, Canada; and Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada 3: Instituto Nacional de Enfermedades Respiratorias, Mexico City, DF, Mexico 4: Department of Environmental and Occupational Health Sciences, National Jewish Medical and Research Center, Denver, Colorado, USA
Publication date: March 1, 2004
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