Field ID | Description | Relationship |
12 | Current regular smoker | Current Field was asked of participants who responded, at baseline, that they were current smokers, as defined by their answer to Field 12 |
18 | Duration of quitting smoking | Field 18 was asked of participants who responded, at baseline, that they had quit smoking on at least one occasion, as defined by their answer to Current Field |
19 | Frequency of ex-smoking | Field 19 was asked of participants who responded, at baseline, that they had quit smoking on at least one occasion, as defined by their answer to Current Field |
20 | Quantity of cigarettes smoked per da ... | Field 20 was asked of participants who responded, at baseline, that they had quit smoking on at least one occasion, as defined by their answer to Current Field |