Pack Year Document For Free

At the basic level, a pack-year is defined as the equivalent of smoking one pack of cigarettes a day for one year. There are 20 cigarettes in a pack, so if a person smokes 20 cigarettes a day for one year, that's literally one pack-year.

year is used to describe how many cigarettes you have smoked in your lifetime, with a pack equal to 20 cigarettes. If you have smoked a pack a day for the last 20 years, or two packs a day for the last 10 years, you have 20 packyears.

?To calculate the number of pack years you have smoked, multiply the number of packs you smoke per day by the number of years you have smoked. That total number is your pack years/number,? says Nikia Clark, Senior Outreach and Education Manager in the Office of Community Outreach and Prevention.

One pack-year is smoking 20 cigarettes a day for one year. If someone has smoked 10 cigarettes a day for 6 years they would have a 3 pack-year history. Someone who has smoked 40 cigarettes (2 packs) daily for 20 years has a 40 pack-year history.

Likewise, if a person smokes 10 cigarettes per day (½ of a pack) for 10 years, that equals 5 pack years (½ pack x 10 years). The higher the pack year number, the more likely a smoker is to have health issues. It's important to note that this pack year formula only applies to manufactured cigarettes.

?To calculate the number of pack years you have smoked, multiply the number of packs you smoke per day by the number of years you have smoked. That total number is your pack years/number,? says Nikia Clark, Senior Outreach and Education Manager in the Office of Community Outreach and Prevention.

year is used to describe how many cigarettes you have smoked in your lifetime, with a pack equal to 20 cigarettes. If you have smoked a pack a day for the last 20 years, or two packs a day for the last 10 years, you have 20 packyears.

At the basic level, a pack-year is defined as the equivalent of smoking one pack of cigarettes a day for one year. There are 20 cigarettes in a pack, so if a person smokes 20 cigarettes a day for one year, that's literally one pack-year.