Figure 1.

Participant timeline. * List of collected baseline variables: Age of smoking onset, date of cessation, number of cigarettes per day, study level, family history of lung cancer, previously diagnosed coronary artery disease or osteoporosis, status in relation to other cancer screenings: breast, cervix, colon, How information about the study reached them. **List of collected outcome variables: Duration of smoking cessation, COPD confirmed by spirometry, coronary artery disease confirmed and treatment initiated (medical treatment or revascularisation), osteoporosis confirmed by additional densitometry, initiation of antiosteoporosis treatment, completion of the other recommended screenings. COPD, chronic obstructive pulmonary disease.