Risk factors for COPD
The most important risk factors for COPD are:1
- Tobacco smoking
- Outdoor and indoor air pollution
- Occupational dusts and chemicals

Figure 1: Causes of COPD.
Adapted from GOLD 2010.1
Expert opinion
Reference
- Global Initiative for chronic obstructive lung disease: Global strategy for the diagnosis, management, and prevention of COPD. 2010. www.goldcopd.org