Preferred Label : Number of Pack Years Smoked;
NCIt definition : A measurement of the amount of smoking exposure an individual has had over time, which
is calculated by multiplying the number of cigarettes smoked per day by the number
of years smoked, and dividing the product by the number of cigarettes in a pack.;
NCI Metathesaurus CUI : CL935977;
Origin ID : C156834;
UMLS CUI : C4745103;
Semantic type(s)
- concept_is_in_subset
