Characteristics of COPD in never-smokers and ever-smokers in the general population: results from the CanCOLD study.

Tan, W.C., et al., Thorax, 2015. 70(9): p. 822-829.

Key findings:

COPD in never-smokers forms a substantial burden in the population: nearly 30% of CanCOLD subjects with COPD had never smoked . COPD in never-smokers was more likely to affect women compared with men.