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How to Calculate Pack Years.
HEALTH

How to Calculate Pack Years.

Rosemary Njeri

A pack-year is a clinical quantification of cigarette smoking used to measure a person’s exposure to tobacco.

This concept is used to assess a person’s risk of developing lung cancer or other pathologies related to tobacco use.

Formula to calculate pack years.

 Calculate Pack Years.

Example:

Suppose a person smokes 1 pack of cigarettes everyday for 3 years. Calculate his pack years.

Since there are 20 cigarettes in a pack therefore;

 Calculate Pack Years.

Thus, the person’s pack years are 3.

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