Chronic obstructive pulmonary disease, known as COPD, is a common condition most often associated with smoking. However, nonsmokers, and even people who have never smoked, can also develop the disease.

What is the life expectancy of a non smoker with COPD?

One study found that a small drop in life expectancy (about 1 year) for people with COPD who had never smoked. But there was a much larger reduction for current and former smokers. For men age 65 who smoke, the drop in life expectancy is: Stage 1: 0.3 years.

What is the main cause of COPD?

Smoking. Smoking is the main cause of COPD and is thought to be responsible for around 9 in every 10 cases. The harmful chemicals in smoke can damage the lining of the lungs and airways. Stopping smoking can help prevent COPD from getting worse.