Which of the following is the most common cause of COPD?

Question

Quizplus · Accepted Answer

Smoking is the most common cause of COPD, accounting for about 80% of cases. Inadequate vitamin C intake and inadequate antioxidant intake may contribute to COPD, but they are not the primary cause. Air pollution exposure can also contribute to COPD, but smoking is still the most significant risk factor. Smoking is the most common cause of COPD, accounting for up to 90% of cases. Inadequate vitamin C and antioxidant intake may contribute to the development of COPD, but are not the primary cause. Air pollution can also contribute to COPD, but is not as prevalent as smoking.

Which of the Following Is the Most Common Cause of COPD