Quality Assessment of Data on Smoking Behaviour in the WHO MONICA Project
(See Section 3.2, Appendix 2b, Appendix 3a and Appendix 3c.)
| CIGS | "Do you smoke cigarettes now?" 1 = yes, regularly 2 = no (if no, record 888 in NUMCIGS) 3 = occasionally 9 = insufficient data |
Code 1 if regular smoker.
Code 2 if non-smoker, i.e. the person does not smoke cigarettes at all.
Code 3 is used when the person smokes cigarettes but usually less than one cigarette per
day.
Code 9 for insufficient data.
| NUMCIGS | "On average how many cigarettes do you now smoke a day?" Record
the number of cigarettes a day. 888 if CIGS = 2 999 = insufficient data |
Record the number of cigarettes smoked daily. If CIGS = 3 and the average number of cigarettes is less than one per day this item should be coded 000.
For the amounts 1 - 9, code 001 - 009 and for amounts 10 - 99, code 010 - 099.
Code 888 if CIGS = 2.
Code 999 if data are insufficient to record the daily number of cigarettes.
| DAYCIGS | "On how many days a week do you smoke cigarettes?" 1 = usually on one day a week (or less) 2 = usually on 2 to 4 days a week 3 = almost every day 4 = every day 8 if CIGS = 2 9 = insufficient data |
Code 1 if usually on one day a week
Code 2 if usually on 2 to 4 days a week
Code 3 if almost every day
Code 4 if every day
Code 8 if the person does not smoke cigarettes (i.e. if CIGS = 2)
Code 9 for insufficient data
This question has been added to clarify the pattern of smoking. An ambiguity existed in the old questionnaire whereby a person who smoked a lot on one day could not be differentiated from someone who smoked a little every day.
| EVERCIG | "Did you ever smoke cigarettes in the past?" 1 = yes, regularly in the past, but not now 2 = no, never 3 = yes, occasionally in the past, but not now 8 = yes, and still regularly or occasionally now 9 = insufficient data |
Codes 1 and 3 are used for persons who smoked cigarettes in the past. In such cases
CIGS = 2 or 9 and NUMCIGS = 888 or 999.
Code 2 is used for never-smokers. In such cases CIGS = 2 and NUMCIGS = 888
Code 8 if CIGS = 1 or 3
Code 9 for insufficient data.
| STOP | "When did you stop smoking cigarettes?" Record the year (four
digits) 8888 = smoking regularly or occasionally now, or never smoked 9999 = insufficient data |
Record the year with four digits or record 9999 in cases when EVERCIG = 1 or 3.Code 8888 if smoking now or never smoked, i.e. EVERCIG = 2 or 8.
| IFLYEAR | If in the last 12 months 1 = less than a month ago 2 = between 1 and 6 months ago 3 = between 6 and 12 months ago 8 = not in the last 12 months, or smoking regularly or occasionally now, or never smoked 9 = insufficient data |
Codes 1, 2 and 3 are self-explanatory.
Code 8 is used if the person is a smoker, i.e. CIGS = 1 or if the person smokes only
occasionally, i.e. CIGS = 3 or if the person has never smoked, i.e. EVERCIG = 2, or if the
person has stopped smoking more than 12 months ago.
Code 9 for insufficient data.
| MAXCIGS | "What is the maximum number of cigarettes you ever smoked per day
for as long as a year?" Record the number of cigarettes a day. 888 if EVERCIG = 2 999 = insufficient data |
Code the number of cigarettes per day
Code 888 if the subject has never smoked (i.e. EVERCIG = 2)
Code 999 for insufficient data
| CIGAGE | How old were you when you began to smoke cigarettes? 88 if EVERCIG = 2 99 = insufficient data |
88 = never smoked
99 = insufficient data
Record the age in full years at the time when smoking started.
Code 88 if EVERCIG =2
| CIGARSM | "Have you ever smoked cigars/cigarillos?" 1 = yes, regularly now 2 = no 3 = oocasionally now 4 = used to, but not now 9 = insufficient data |
Code 1 if regularly now
Code 2 if no
Code 3 if occasionally now
Code 4 if used to, but not now
Code 9 for insufficient data
| CIGAR | "About how many cigars/cigarillos do you smoke per week?"
Record the number. 888 if CIGARSM = 2 or 4 999 = insufficient data |
Record the number of cigars or cigarillos smoked.
Code 000 if a non-smoker or occasional smoker (less than one per week on average).
Code 999 for insufficient data.
| PIPESM | "Have you ever smoked a pipe?" 1 = yes, regularly now 2 = no 3 = occasionally now 4 = used to, but not now 9 = insufficient data |
Code 1 if regularly now
Code 2 if no
Code 3 if occasionally now
Code 4 if used to, but not now
Code 9 for insufficient data
| PIPE | "About how many grams of pipe tobacco do you smoke per week?"
Record the number of grams. (1 ounce = 30 grams) 888 if PIPESM = 2 or 4 999 = insufficient data |
Record the number of grams (1 ounce = 30 grams).
Code 000 if a non-smoker or occasional smoker (less than one gram per week on average).
Code 999 for insufficient data.
| OTHERSM | "For how many hours, on average each day, are you closely subjected
to other people's tobacco smoke?" Record the number of hours. 99 = insufficient data |
Record the approximate number of hours. "Closely subjected" in this context
means that the subject is affected by the smoke or is aware of inhaling it.
Code 99 for insufficient data