MORGAM_SMO_PIPE

The variable is similar to the MORGAM variable PIPESM:

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 or regular and occasional smokers cannot be separated. For details of the deviations, see the MORGAM smoking data assessment .

EPIC_SMO_PIPE

The variables PIPE, N_PIPE, SMOKE_ST, SMO_STAT_DAILY were used for the production of SMO_PIPE according to the following definition and rule.

EPIC var definition(s):
PIPE: Epic elderly variable showing currently smoked pipes (0=no, 1=yes)

N_PIPE: Epic elderly variable showing number of pipes smoked per week

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

SMOKE_STAT_DAILY: Epic elderly variable showing current daily smoking status (1=never daily smoker , 2=former daily smoker, 3=daily smoker, 9=unknown)

Coding rule:
Variable SMO_PIPE shows whether the person is smoking pipe. Is equal to 0 if the person does not currently smoke pipe or the info is unavailable (PIPE=. or 0)

Is equal to 1 if the person is smoking pipe currently (PIPE=1) or the number of pipes per week is greater than 1 (N_PIPE>=0 & N_PIPE~=.).

Otherwise SMO_PIPE is coded as missing if smoking status is unavailable (SMOKE_ST=4) or the person is a daily smoker (SMO_STAT_DAILY=3) and the person is neither smoking cigar (SMO_CIGAR=0) nor cigarettes (SMO_CIGS=0) nor pipe (SMO_PIPE=0)

Coding rule in STATA:
-gen SMO_PIPE = 0 if PIPE==.

-replace SMO_PIPE = 0 if PIPE==0

-replace SMO_PIPE = 1 if PIPE==1

-replace SMO_PIPE = 1 if N_PIPE>=0 & N_PIPE~=.

-replace SMO_PIPE = 9 if SMOKE_ST==4

-replace SMO_PIPE= 9 if SMO_CIGAR==0 & SMO_CIGS==0 & SMO_PIPE==0 & SMO_STAT_DAILY==3