caffeine_intake cigarette_pack_years_c3
Name
cigarette_pack_years
Label
Cigarette Pack Years
Description

This variable calculates the cigarette pack years as the number of exposure years multiplied by the average number of cigarettes smoked per day.

Units
packs
Type
numeric
Tags
smoking
Visit Number vs Cigarette Pack Years
N Mean StdDev Median Min Max Unknown Total
Baseline 13,780 6.0 ± 14.3 0.0 0.0 159.0 2,635 16,415
Sueño Ancillary - - - - - - - -
Gender vs Cigarette Pack Years
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 13,780 6.0 ± 14.3 0.0 0.0 159.0 375 14,155
Female 8,181 4.2 ± 11.7 0.0 0.0 159.0 177 8,358
Male 5,599 8.6 ± 17.0 0.2 0.0 153.0 198 5,797