smoking status - GP records

Current smoking status from review of GP notes.

Categorical

smoking status change - GP records

Has smoking status changed since start of trial? From review of GP notes

Categorical

Number of cigars

Number of cigars smoked pre day when smoking - collected by 5yr WRAP questionnaire

Real

Number of cigarettes

Number of cigarettes smoked pre day when smoking - collected by 5yr WRAP questionnaire

Real

Grams tobacco

Grams of tobacco smoked per day when smoking - collected by 5yr WRAP questionnaire

Real

Year quit smoking

Year quit smoking - collected by 5yr WRAP questionnaire

Integer

Age started smoking

Age started smoking - collected by 5yr WRAP questionnaire

Integer

Smoking status GP records

Smoking status from GP records at 5 years

Categorical

Smoking status

Smoking status from questionnaire self-report at 5 years

Categorical

how long smoked for

If smoke, for how long? - collected retrospectively by self-report at 2-year WRAP visit

Text

smoking status

Smoking status - collected retrospectively by self-report at 2-year WRAP visit

Categorical