Metaplasia of Bronchial Epithelium
- 23 February 1970
- journal article
- research article
- Published by American Medical Association (AMA)
- Vol. 211 (8) , 1331-1334
- https://doi.org/10.1001/jama.1970.03170080019004
Abstract
In 500 apparently "healthy" adults who died suddenly and unexpectedly and who lived and worked within the environs of a large urban area noted for its air pollution, autopsy studies revealed that 50% of all adult nonsmokers had metaplasia of their tracheobronchial epithelium. Metaplasia was present in 70% of male cigarette smokers. Women in each category revealed half the frequency of metaplasia present in the men. Metaplasia was present in less than 20% of men under the age of 30 years, rose to a peak of 80% at age 50 years, and gradually declined in frequency after the age of 60 years.Keywords
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