a way to measure the amount a person has smoked over a long period of time. it is calculated by multiplying the number of packs of cigarettes smoked per day by the number of years the person has smoked. for example, 1 pack year is equal to smoking 1 pack per day for 1 year, or 2 packs per day for half a year, and so on.
出典:Wiktionary
出典:『Wiktionary』 (2025/11/23 23:04 UTC 版)
pack-year (plural pack-years, abbreviation PY or py)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/24 20:27 UTC 版)
A pack year is a quantification of cigarette smoking.
| ・pack year | |
| ・diagnosable | |
| ・Killifish | |
| ・file conversion | |
| ・Deformations | |
| ・catclaw | |
| ・vco | |
| ・perles | |
| ・HRTs | |
| ・trnas |