Smoking classification

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Case #1

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Overview

Smoking may be classified as heavy and non-heavy diagnosis.

Classification

Smoking may be classified based on the number of cigarettes per day multiply by the duration of smoking as years (pack per year) to:

• Heavy smokers: More than 20 pack per year (p/y)
• Non-heavy smokers: Less than 20 p/y