LOINC long common name : Deprecated PhenX measure - tobacco - smoking status;
LOINC description : Questions asking the respondent how old s/he was when s/he first smoked cigarettes
and first smoked cigarettes regularly. Questions asking the respondent how old s/he
was when s/he first smoked cigarettes and first smoked cigarettes regularly. This
measure assesses when the participant's exposure to cigarette smoking began, often
associated with level of nicotine addiction. When this measure is used in conjunction
with the Tobacco - Age of Offset of Use measure for former smokers or current age
for current smokers, the participant's duration of smoking can be derived. Pack-years
can also be derived from calculating the measure of amount smoked and duration.;
Has component