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Stopped smoking 1+ days in past year (current daily smokers)

Codes and Frequencies

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For sample persons age 18 and older who are current everyday smokers, CSQSTOP12M indicates if, during the past 12 months, the person ever stopped smoking for one day or longer. Please see the Universe tab for details about who was asked this question for each year the variable is offered. There are slight changes in the universe between years.


Other than the minor changes in the universe outlined in the Universe tab, this variable has no comparability issues. Changes in survey design (e.g., quarters in which the supplement was collected) may affect raw frequencies, but do not affect comparability of the variable. As always, data users should use the prescribed IPUMS NHIS weights.


  • 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 every day, and have ever stopped smoking for 1 day or more.
  • 1994-1995: Half of sample persons age 18+ (excluded from AIDS supplement) who have smoked at least 100 cigarettes and currently smoke every day.


  • 1992, 1994-1995