Prevalence and determinants of chronic obstructive pulmonary disease among a sample of adult smokers in Baghdad, Iraq, 2014

This cross-sectional study was conducted to estimate the prevalence and identify determinants of chronic obstructive pulmonary disease (COPD) among a convenience sample of 325 adult smokers in Baghdad, Iraq, 2014. Beside demographic variables, participants had Lung Function Questionnaire to assess respiratory symptoms; individuals with a score of ≤18 had a spirometry examination. Those with FEV1/FVC ratio 55 (OR=2.14, 95% confidence interval = 1.04-4.39), and pack year smoking >40 (OR =5.37, 95% confidence interval = 1.70-16.91) were the significant independent determinants. All adult smokers should have a spirometry testing and counseled to stop smoking.