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Bednarek, MD,
*
From the Department of Respiratory Medicine, Institute of Tuberculosis and Lung Diseases, Warsaw, Poland.
A complete list of investigators of the Know the Age of Your Lung Study Group is located in the Appendix.
Correspondence to: Jan Zieliñski, MD, PhD, FCCP, Department of Respiratory Medicine, Institute of Tuberculosis and Lung Diseases, Plocka 26, 01138 Warsaw, Poland; e-mail: j.zielinski{at}igichp.edu.pl
Study objectives: To evaluate the efficacy of mass spirometry use for the detection of airflow obstruction in a high-risk population.
Design: Free spirometry was offered to smokers who were > 39 years of age with a smoking history of > 10 pack-years. Action was preceded by the dissemination of information on the causes and symptoms of COPD in the local mass media.
Setting: Pulmonary outpatient clinics in 12 large cities of Poland.
Participants: Eleven thousand twenty-seven subjects with the following characteristics were screened: mean (± SD) age, 51.8 ± 12.5 years; men, 57%; current or ex-smokers, 80%; and mean smoking history, 26.1 ± 16.8 pack-years.
Interventions: Smoking history, simple spirometry (FVC and FEV1), and an antismoking advice.
Results:
Spirometric signs of airway obstruction were found in 24.3% of the
subjects who were screened. Of those subjects, mild obstruction was
found in 9.5%, moderate obstruction was found in 9.6%, and severe
obstruction was found in 5.2%. In smokers aged
40 years who had a
smoking history of > 10 pack-years, airway obstruction was found in
30.6%. Airway obstruction was present in 8.3% of smokers < 40 years
of age who had a smoking history of < 10 pack-years. Of the 2,200
subjects who had never smoked in their lives, airway obstruction was
found in 14.4%.
Conclusions: Mass spirometry in high-risk groups is an effective and easy method for the early detection of COPD.
Key Words: COPD high-risk group mass spirometry.
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