Results: was higher for patients> 50 years (adjusted OR 5.07, 95% CI: 2.25-11.44), smokers> 30 pack-years (adjusted OR 2.23, 95% CI: 1.55-3.21), with dyspnea (adjusted OR 1.93, 95% CI: 1.43-2.61), and having prior spirometry (adjusted OR 2.04, 95% CI: 1.47-2.81). We built a score for COPD based on the OR for sex, age, pack-years smoking, dyspnea, sputum, cough and prior spirometry. Table below shows the points conceded for each variable. The mean accuracy (AUC) of the simple score for detecting COPD (post-BD