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=== (2) Smoking Initiation ===
=== (2) Smoking Initiation ===
This is a binary phenotype. Code "1" for everyone in the study who reports ever being a regular smoker in their life (current or former). Code a "0" for everyone else.
This is a binary phenotype. Code "1" for everyone in the study who reports ever being a regular smoker in their life (current or former). Code a "0" for everyone who denies ever being a regular smoker in their life.
Every study had some usable measure of whether a respondent has ever regularly smoked. Almost all asked directly. Some have necessary information to code this variable (e.g., 100 cigs lifetime? Ever smoked every day for 2 weeks straight?).
Every study had some usable measure of whether a respondent has ever regularly smoked. Almost all asked directly. Some have necessary information to code this variable (e.g., 100 cigs lifetime? Ever smoked every day for 2 weeks straight?).
