Respirology : official journal of the Asian Pacific Society of Respirology
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The aim of this study was to determine the prevalence of and risk factors associated with COPD in a rural setting in the Philippines. ⋯ The prevalence COPD in a rural community in Nueva Ecija, Philippines was 20.8% for GOLD Stage I or higher, and 16.7% for GOLD Stage II or higher. In addition to smoking history, the use of firewood for cooking, working on a farm and a history of tuberculosis were significantly associated with fixed airflow obstruction, as assessed by spirometry.