Jiang 2012.

Methods	Design: RCT Follow‐up: 10 months Control group: usual care
Participants	Recruitment: hospital (outpatient). Assessed for eligibility: 295. Randomly assigned: SM: 50; UC: 50. Completed: SM: 49; UC: 47. Mean age: SM: 65.2 (SD 8.96) years; UC: 64.7 (SD 8.05) years. Gender (% male): SM: 71.4; UC: 68.1. COPD diagnosis: moderate or severe COPD according to the Global Initiative for Chronic Obstructive Lung Disease (GOLD). Inclusion of participants in acute phase: not reported. Major inclusion criteria: moderate or severe COPD according to the GOLD, disease duration < 2 years since COPD diagnosis, at least one COPD exacerbation (defined as a complex of respiratory events/symptoms (increase or new onset) with a duration of 3 days requiring a change in treatment). Major exclusion criteria: unable to communicate clearly and give informed consent, concurrent oncologic or psychiatric diseases, drug or alcohol abuse history.
Interventions	Mode: weekly phone calls, audio CD, the self‐help manual, instruction booklet. Duration: 35 min per phone call. Professional: nurse. Assignment of case manager: unclear. Self‐management components: unclear whether each included participant received at least two intervention components including an iterative process. Self‐management topics: unclear. Behavioural change techniques: at least goals and planning, feedback and monitoring, other unclear.
Outcomes	1. uncertainty level (Mishel’s Uncertainty in Illness Scale‐Adult) 2. CSQ 3. anxiety (State‐Trait Anxiety Inventory scale) 4. depression (HADS‐depression) 5. quality of life (SF‐36)
Notes	More information regarding COPD spirometry, intervention components and iterative process needed.