pack-years

pack-years

Medtalk A crude indicator of a person's cumulative cigarette consumption, equal to the number of packs of cigarettes smoked/day, multiplied by yrs of consumption. See Smoking, Tobacco.
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Study also revealed that the accelerated lungs function decline in the women working as cleaners was 'comparable to smoking somewhat less than 20 pack-years.
One pack per day for 30 years or 2 packs per day for 15 years would both be 30 pack-years.
Patients and controls were similar in terms of age, gender, smoking pack-years and comorbidities.
Oelsner said this decline is comparable "to a 10-year increment in pack-years of smoking.
Everyone had a lowest-ever CD4 count* below 350 and smoked at least 20 pack-years (for example, 2 packs a day X 10 years = 20 pack-years).
Patients ages 55 to 74 with at least 30 pack-years of tobacco smoking history (one pack-year = smoking one pack per day) who have undergone counseling as to the potential benefits and harms of screening should have a yearly LDCT," says Dr.
For farmers, rate ratios were adjusted for age at enrollment (< 55, 55-59, 60-64, 65-69, 70-74, [greater than or equal to] 75 years), pack-years of cigarette smoking (nonsmokers, < 20, 20-39, 40-59, [greater than or equal to] 60, unknown), level of education (beyond high school, high school, above high school, unknown), state (North Carolina, Iowa), race (white, other than white), and potential exposure to endotoxins (no animals or grain exposure, exposure to animals or stored grain but not both, exposure to both animals and stored grain).
In a study of 2000 US veterans, all-cause mortality was more than 80% higher in in HIV-positive smokers than HIV-positive never-smokers whether they smoked under 20 pack-years * or over 20 pack-years.
According to the firm, the verdict in Donovan v Philip Morris USA concluded a 10-year old case being pursued on behalf of all Massachusetts smokers of Philip Morris USA cigarettes who have smoked for 20 pack-years.
This complete victory concludes a decade-long case that was being pursued on behalf of all Massachusetts smokers of Philip Morris USA cigarettes who have smoked for 20 pack-years, with a total class size estimated to be in the tens of thousands.
The odds of having a hearing loss increased with pack-years of smoking and were higher for nonsmokers living with a current smoker.
Pack-year data show that most cases had pack-years of more than 20 years (21 cases, 47.