1 Joan, Princess of Wales, in the 13th century, the wife and consort of Llywelyn the Great, the Prince of Wales; and the daughter of King John of England. Joan, Princess of Wales, in the 13th century, the wife and consort of Llywelyn the Great, the Prince of Wales; and the daughter of King John of England.
1 More than 90% of COPD deaths occur in low- and middle-income countries. 2  The primary cause of COPD is tobacco smoke (through tobacco use or second-hand smoke).  The disease now affects men and women almost equally, due in part to increased tobacco use among women in high-income countries.
The main risk factor for COPD is smoking. Most people who have COPD smoke or used to smoke. People who have a family history of COPD are more likely to develop the disease if they smoke. Long-term exposure to other lung irritants also is a risk factor for COPD. Examples of other lung irritants include secondhand smoke, air pollution, and chemical fumes and dust from the environment or workplace.