Measurement to ascertain when the respondent quit smoking. Response is used to calculate duration of use and pack-years measures and allows one to distinguish recent quitters from long-time quitters. Respondent is asked how long it has been since he or she completely quit smoking only if he or she was classified as a Former Smoker based on responses to the Tobacco - Smoking Status (Adult Protocol). Length of time and unit of time (days, weeks, months, years) are recorded.
status
ACTIVE
Fully-Specified Name
component
PhenX - tobacco - age of offset use - adult protocol 030902
property
-
time
Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
system
^Patient
scale
-
method
PhenX
Additional Names
short name
Pan; Panel; PANEL.PHENX; Panl; Pnl; Point in time; Random; Tobac age offset adult proto
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