Bösch 2007.

Study characteristics
Methods	Design: RCT Follow‐up: 12 months Control group: usual care
Participants	Recruitment: outpatient clinic Assessed for eligibility: not reported Randomly assigned: SM: 38; UC: 12 Completed: SM: 30; UC: 11 Mean age: SM: 63.8 (SD 8.4) years; UC: 64.6 (SD 6.8) years Gender (% male): 63% of 41 participants who completed the study; the distribution of males per group is not reported COPD diagnosis: GOLD criteria (FEV1/FVC ratio < 0.7), confirmed by authors Inclusion of participants in the acute phase: not reported Major inclusion criteria: diagnosis of COPD with obstruction proven by spirometry and a FEV1/FVC < 70% Major exclusion criteria: comorbidities which significantly influence symptoms, capacity or spirometry (symptomatic cardiopulmonary disease)
Interventions	Mode: group sessions (six to eight participants) at the participants' homes Duration: four face‐to‐face group sessions of two hours each with the final session scheduled six weeks later Professional: respiratory nurse under supervision of a respiratory specialist Assignment of case managers: yes, accessible to participants during the complete follow‐up period Self‐management components: smoking cessation (optional), self‐recognition of COPD exacerbations, use of a COPD exacerbation action plan, home‐based exercise or physical activity component, diet, COPD medication intake (i.e. adherence, inhalation technique), coping with breathlessnes, leisure activities and travelling Self‐management topics: not reported Behavioural change techniques: 2 clusters: goals and planning, feedback and monitoring
Outcomes	1. mMRC 2. Courses of antibiotics 3. FEV1 (L) 4. Hospital admissions 5. 6MWT 6. COPD exacerbations, based on treatment with antibiotics
Notes	Sources of funding: not reported Conflict of interest: none declared