Chronic Obstructive Pulmonary Disease (COPD), Smoking, Smoking cessation, Smoking reduction, Tobacco addiction, COPD, Lung emphysema, Chronic bronchitis, Nicotine dependence, Smoking reduction, single case experimental design (SCED).
Conditions
Interventions
Participants of the REDUQ II study receive one of the two (experimental and control) smoking reduction treatments of the REDUQ study (see NTR2227).
Sponsors
Medisch Spectrum Twente hospital and University of Twente
Eligibility
Inclusion criteria
Inclusion criteria: 1. Clinical COPD, GOLD stage I-IV; 2. Age 40-80 years; 3. Smoking 10 or more cigarettes daily; 4. Motivated to reduce smoking; 5. Two or more failed lifetime quit attempts (abstinence > 24 hours).
Exclusion criteria
Exclusion criteria: 1. Motivated to quit smoking within 1 month from baseline (= ready to quit); 2. Not able to speak, read and write Dutch; 3. Contra-indication for the use of all forms of NRT; 4. Serious psychiatric morbidity (not only depressive symptoms); 5. Pregnancy.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| - (biochemically validated) smoking status - motivation/intention to quit - self-efficacy - attitudes towards smoking cessation | — |
Secondary
| Measure | Time frame |
|---|---|
| - social influence - desire or urge to smoke - treatment adherence (scheduled reduced smoking) - use of NRT and/or anti-smoking medication | — |
Contacts
Public ContactMarcel Pieterse
University of Twente, building citadel, P.O.Box 217
Outcome results
None listed