MORGAM_SMO_NUMCIGAR

The SMO_NUMCIGAR variable is defined using the MORGAM variable CIGAR and the CHANCES variable SMO_STAT_DAILY:

If SMO_STAT_DAILY = 1 or 2, then SMO_NUMCIGAR=0.
If SMO_STAT_DAILY = 3 or 9, then:

In some MORGAM Centres, the local question(s) from which the MORGAM data was extracted deviated from the MORGAM question. E.g. in some cohorts, pipe and cigar smoking was included in the question. For details of the deviations, see the MORGAM smoking data assessment.

EPIC_SMO_NUMCIGAR

The variables N_CIGARS, SMOKE_ST were used for the production of SMO_NUMCIGAR according to the following definition and rule.

EPIC var definition(s):

N_CIGARS: Epic elderly variable showing number of cigars smoked per week

SMOKE_ST: Epic elderly variable showing smoking status (1=never, 2=former, 3=smoker, 4=unknown)

Coding rule:
Variable SMO_NUMCIGAR shows number of cigars smoked per week. Is identical to N_CIGARS.

If the person has been a former (SMOKE_ST=2) or a non smoker (SMOKE_ST=1) then SMO_NUMCIGAR is equal to 0.

Otherwise SMO_NUMCIGAR is coded as missing (9999).

Coding rule in STATA:
-gen SMO_NUMCIGAR = N_CIGARS

-replace SMO_NUMCIGAR = 0 if SMOKE_ST==1 | SMOKE_ST==2

-recode SMO_NUMCIGAR .=9999