Smoking classification

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Case #1

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:  Seyedmahdi Pahlavani, M.D. [2]

## Overview

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Smoking may be classified as heavy and non-heavy, depending on the number of cigarettes consumed per day. Smokers can also be classified with respect to duration as acute or chronic smokers.

## Classification

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Smoking and smokers can be classified with respect to quantity and the duration of smoking.

### Quantity

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

* Heavy smokers
* More than 20 packs per year (p/y)
* Non-heavy smokers
* Less than 20 p/y

### Duration

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With respect to the duration of smoking, smokers can be classified as:

* Acute
* Chronic

## References

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