Table 1 Measurement process and time

Screening

Patient

Smoking status (>20 cigarettes per day yes/no) and/or presence of cardiovascular disease or COPD

Questionnaire (t0)

Patient

Smoking status:

 Fagerström Test for Nicotine Dependence (FTND) [20]

 Quantity-frequency index (30 days): Amount of days on which patients smoked during the last 30 days, average amount of cigarettes consumed per day [19]

 SmoCess-Questionnaire to assess primary care for smoking cessation [21]

Health status:

 Health-related quality of life SF-12 [23]

 EQ-5D-3L [24]

 Respiratory complaints: Visual Simplified Respiratory Questionnaire (VSRQ) [25]

Motivation:

 Questionnaire to assess readiness to change among smokers (FÄR) [22]

Documentation sheet (t0)

Physician

Smoking history (number of years of smoking), relevant clinical indications (severity of cardiovascular disease or COPD)

Questionnaire (t1)

Patient

Smoking status:

 Fagerström Test for Nicotine Dependence (FTND) [20]

 Quantity-frequency index (30 days): Amount of days on which patients smoked during the last 30 days, average amount of cigarettes consumed per day [19]

 SmoCess-Questionnaire to assess primary care for smoking cessation [21]

Health status:

 Health-related quality of life SF-12 [23]

 EQ-5D-3L [24]

 Respiratory complaints: Visual Simplified Respiratory Questionnaire (VSRQ) [25]

Motivation:

 Questionnaire to assess readiness to change among smokers (FÄR) [22]

Questionnaire (t2)

Patient

Smoking status:

 Fagerström Test for Nicotine Dependence (FTND) [20]

 Quantity-frequency index (30 days): Amount of days on which patients smoked during the last 30 days, average amount of cigarettes consumed per day [19]

 SmoCess-Questionnaire to assess primary care for smoking cessation [21]

Health status:

 Health-related quality of life SF-12 [23]

 EQ-5D-3L [24]

 Respiratory complaints: Visual Simplified Respiratory Questionnaire (VSRQ) [25]

Motivation:

 Questionnaire to assess readiness to change among smokers (FÄR) [22]