pack-year

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pack-year

The consumption of a pack of cigarettes daily for a year (approximately 365 packs of cigarettes annually). The number of pack-years that people smoke correlates closely with the amount of damage that tobacco does to their hearts, lungs, and other organs.
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A joint year of cannabis was defined as smoking one joint per day for one year while a pack year of tobacco was equivalent to smoking 20 cigarettes per day for one year.
ALTHOUGH it may sound like just another Rat Pack show, The Kings Of Swing is more a celebration of the music of the Las Vegas Rat Pack years rather than the personalities who performed it.
There was no significant difference between the groups for age, pack years of cigarettes smoked, total joints of marijuana smoked, or race (p > 0.
The data were adjusted for potentially confounding factors such as age, total energy intake, physical activity level, pack years of smoking, and NSAID use.
In longitudinal models, vitamin D deficiency exacerbated the effect of pack years of smoking on the decline in FEV1 over time.
Using an univariate ANOVA, there were no significant differences between the groups for age, IQ, history of abuse, pack years smoking, marijuana, or major depression (p>0.
This study is the first of its kind to examine a wide variety of smoking parameters, such as how long and how often a woman has smoked, the number of pack years smoked, whether she was a former or recent smoker, her age at smoking onset, and whether she started smoking before her first full-term pregnancy.