Worldwide, cigarette smoking is assumed to be the leading cause of COPD

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However, people who have never smoked are also at risk of COPD.

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As per statistics, the prevalence of COPD in nonsmokers is around 2.8% and 7.6% in former smokers.

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Oftentimes, COPD is not inherited. Exposure to substances like chemical fumes or tobacco smoke causes it.

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To learn more about COPD in Nonsmokers and its management.