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Indicates whether subject currently smokes cigarettes. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: :yevrsmk: , :ycursmk: at Visit 3

Smoking is defined as at least 1 cigarette a day

Smoking is defined as at least 1 cigarette a day

Indicates whether subject currently smokes cigarettes. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: :cursmk5:

Indicates whether subject ever regularly smoked cigarettes. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: :smoked: at Baseline

Indicates whether subject ever regularly smoked cigarettes.No means less than 20 packs in a lifetime or less than 1 cigarette for 1 year. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: :shq_eversmoked: at Baseline

No means less than 20 packs in a lifetime or less than 1 cigarette for 1 year

Indicates whether subject currently smokes cigarettes. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: :subs_tob_1:

Indicates whether subject ever regularly smoked cigarettes.Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: :cigarette_use:

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

This variable groups cigaratte use into 3 categories

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

This variable is an indicator to denote current smoker status using the variable cigarette_use.

Indicates whether subject ever regularly smoked cigarettes. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: :smoke:

Indicates whether subject ever regularly smoked cigarettes. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: :smokstat_s1: at Visit 1 and :smokstat_s2: at Visit 2

How many cigarettes per day did you average over all the time you smoked? (number per day, up to 2 digits)

If yes to [SMKNOW15]: How many cigarettes do you smoke per day now? (number per day, up to 2 digits)

Have you smoked as many as 20 packs of cigarettes in your whole lifetime?

22a. If "Yes" how many years did you NOT Smoke?

On average, during the entire time you smoked, how many cigarettes did you usually smoke per day?