Medical Calculator#Smoking#Lung cancer#respirology

Pack Years in Smoking

Quantifies patient smoking habits into a standardized form

Author / Source: Riley Golby, MD

1
packs

1 pack = 20 cigarettes<br/>Please enter total packs (eg. 30 cigarettes/day entered as "1.5")

2
Years

Results

Real-time automated computation

1/2 calculated
Outcome:
Awaiting input values...
Recommendation:
Most studies focused on smoking risk cite pack-years as a standardized amount to quantify patient use. Quantifying patient smoking habits can help with clinician counseling and adverse event risk assessments.
Clinical Parameters (0/2)
0%
Medical calculation formulas standardized according to evidence-based clinical protocols.
About

The Pack Years in Smoking tool provides primary care providers and relevant specialists with a common language to quantify smoking use. Recreational or occasional smoking portend different risk profiles than heavy daily users, and this provides clinicians with some implicit information about patient lung health. It is also a tool that is helpful to quantify lifelong habits that have varied in severity. Specifically, many patients quit or fluctuate in smoking amounts throughout life and may require multiple calculations to properly quantify use pattern.

Packs of cigarettes smoked per day: (enter number) packs

  • 1 pack = 20 cigarettes
  • Please enter total packs (eg. 30 cigarettes/day entered as "1.5"

Years patient has smoked: (enter number) years

Results:

  • Pack Years = Packs per day x Years of smoking