• Component Description
• Eligible Sample
• Interview Setting and Mode of Administration
• Quality Assurance & Quality Control
• Data Processing and Editing
• Analytic Notes
• References
• Codebook
  • SEQN - Respondent sequence number
  • SMQ020 - Smoked at least 100 cigarettes in life
  • SMD030 - Age started smoking cigarettes regularly
  • SMQ040 - Do you now smoke cigarettes
  • SMQ050Q - How long since quit smoking cigarettes
  • SMQ050U - Unit of measure (day/week/month/year)
  • SMQ053 - CHECK ITEM
  • SMD055 - Age last smoked cigarettes regularly
  • SMD057 - # cigarettes smoked per day when quit
  • SMD070 - # cigarettes smoked per day now
  • SMD075 - How many years smoked this amount
  • SMQ077 - How soon after waking do you smoke
  • SMD641 - # days smoked cigs during past 30 days
  • SMD650 - Avg # cigarettes/day during past 30 days
  • SMD093 - May I please see the pack of cigarettes
  • SMDUPCA - Cig 12-digit Universal Product Code-UPC
  • SMD100BR - Cigarette Brand/sub-brand
  • SMD100FL - Filter type
  • SMD100MN - Menthol indicator
  • SMD100LN - Length
  • SMD100TR - FTC Tar Content
  • SMD100NI - FTC Nicotine Content
  • SMD100CO - FTC Carbon Monoxide Content
  • SMQ120 - Smoked a pipe at least 20 times in life
  • SMD130 - Age started pipe smoking regularly
  • SMQ140 - Do you now smoke a pipe
  • SMQ143 - # pipefuls of tobacco smoked per day
  • SMQ145 - # years smoked this amount of pipes
  • SMQ150 - Smoked cigars at least 20 times in life
  • SMD160 - Age started cigar smoking regularly
  • SMQ170 - Do you now smoke cigars
  • SMQ173 - # cigars smokes per day
  • SMQ175 - # years smoked this amount of cigars
  • SMQ180 - Used snuff at least 20 times in life
  • SMD190 - Age started using snuff regularly
  • SMQ200 - Do you now use snuff
  • SMD203 - # snuff pinches/dips/rubs per day
  • SMQ205 - # years used this amount of snuff
  • SMQ210 - Used chewing tobacco 20 times in life
  • SMD220 - Age started chewing tobacco regularly
  • SMQ230 - Do you now use chewing tobacco
  • SMD233 - # chewing plugs/wads/chaws per day
  • SMD235 - # years used this chewing tobacco amount
• Appendix: Names and Labels of Smoking and Tobacco Use (SMQ) Variables for 1999-2000, 2001-2002, and 2003-2004 Data Releases

National Health and Nutrition Examination Survey

2003-2004 Data Documentation, Codebook, and Frequencies

Smoking - Cigarette/Tobacco Use - Adult (SMQ_C)

Data File: SMQ_C.xpt

First Published: September 2006

Last Revised: NA

Component Description

The Smoking and Tobacco use (SMQ) section includes an extensive array of questions on tobacco use including cigarettes and other forms of tobacco. Questions are from previous NHANES questionnaires and other federal surveys.

Topics:

• Cigarette use: Ever used and history of use, age at initiation, current use, past 30-day prevalence, amount used, brand of cigarette used, and related details.
• Cigar, pipe, chewing tobacco snuff, chewing tobacco use: ever used, and history of use, age at initiation, current use, past 30-day prevalence, amount used.

Eligible Sample

Participants 20+ years.

Interview Setting and Mode of Administration

The SMQ section was administered in the home by a trained household interviewer.

Quality Assurance & Quality Control

Questionnaire data are systematically reviewed for logical, processing, and data input errors on a periodic basis during data collection.

The computer-assisted personal interview mode allows for built in consistency checks, and hard and soft edit checks to reduce the number of keying entry errors.

Data Processing and Editing

SMDUPCA: When cigarette pack was seen, interviewers entered the Universal Product Code (UPC), the numbers beneath the bar code found on each cigarette pack. The code was then matched to the Cigarette Universal Product Code Database, 2005 which included the UPC, 12 digit codes derived from AC Nielson supermarket scanner data¹. UPC numbers that were incomplete and could not be matched were assigned a code “No Match.” In rare instances, complete UPCs with other identifiable information on the brand name, verified on the Internet, were included.

SMD100BR: When a cigarette pack was seen, the interviewer attempted to match the UPC code with the Cigarette Universal Product Code Database which included the brand name, sub brand and qualifiers describing the cigarette. If the cigarette pack was not available or if a match could not be made because the UPC was incomplete or not recognized, a second match was attempted using an auxiliary data base prepared from the Federal Trade Commission Report: “Tar, Nicotine, and Carbon Monoxide of the Smoke of 1294 Varieties of Domestic Cigarettes for the Year 1998,” (FTC, 2000). In rare instances, partial cigarette brands that were reported but could not be matched to either data base were included.

SMD100TR, SMD100NI, SMD100CD: Tar, nicotine and carbon monoxide content was obtained from the Federal Trade Commission Report: “Tar, Nicotine, and Carbon Monoxide of the Smoke of 1294 Varieties of Domestic Cigarettes for the Year 1998,” (FTC, 2000). These data were not available for all cigarette brands.

Analytic Notes

Additional questions on smoking and tobacco use, including questions for youths ages 12-19 years, can be found in the MEC Interview.

References

• “Tar, Nicotine, and Carbon Monoxide of the Smoke of 1294 Varieties of Domestic Cigarettes for the Year 1998,” (FTC, 2000).
• Report to CDC Office on Smoking and Health, “Cigarette Universal Product Code Database: 2005 Version, RTI Project Number 0208654.032.000.001, January 2006.

Codebook and Frequencies