Note to interviewer: Respondents who were classified as a "Smoker" or "Non Smoker" by answering the Tobacco - Smoking Status adolescent protocol, Question 1 as ""Yes"" (Have you ever smoked part or all of a cigarette?) are asked.
status
ACTIVE
Fully-Specified Name
component
How long has it been since you last smoked part or all of a cigarette
property
Time = Time Duration
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
Qn = Quantitative: The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256
method
PhenX
Additional Names
short name
Past; Point in time; QNT; Quan; Quant; Quantitative; Random; Smoke; Smokes; Smoking; Smoking cessation time; Tobacco
Basic Attributes
class
PHENX
type
2 Clinical
order vs. observation
Smoking cessati
example UCUM units
D, W, Mo, Y The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org)