0: Never or less than 1 month
995: 995+
996: Not in Universe
997: Unknown-refused
998: Unknown-not ascertained
999: Unknown-don't know
Description
[Placeholder variable description: Duration since smoked cigarettes every day: Months (current smoker)].
Comparability
No information available.
Universe
1992: Half of sample persons age 18+ in quarters 1 and 2, and in 2 weeks of quarter 3 (excluded from CAEP supplement) who have smoked at least 100 cigarettes, smoke cigarettes now, smoke some days or indicate that they do not smoke now but smoke some days, smoked at least once in past 30 days/REF/NA/DK how many days smoked in past 30 days, and have ever smoked every day for at least 6 months.
