​Cigarette smokers are more likely to develop chronic obstructive pulmonary disease (COPD) than non-smokers.

This study assessed the role of smoking in the development of chronic obstructive pulmonary disease (COPD) in men and women. Researchers tracked the smoking habits, evaluated the lung function, and monitored the mortality records of 8,045 men and women recruited from the Copenhagen City Heart Study for a period of 25 years.

Researchers discovered that continuous smoking of cigarettes elevated the risk of having COPD by at least 25%. In contrast, cessation of smoking was found to diminish COPD risk significantly in this study. The authors concluded that the absolute risk of developing COPD among continuous smokers is at least 25%, which is larger than was estimated in previous studies.