Table 1 Study schedule and measurements used

Enrolment

 Patients and relatives

  Eligibility screening

x

  Informed consent

x

Allocation

x

Intervention

 Psychoeducational group intervention

x

 Adherence and competence of therapists^a/IG

x

Self-rating

 Patient-related

  Symptom self-rating (PHQ-9, Core set)

x

x

x

x

x

  Rehospitalisations (FIMA, CSSRI-D)

x

x

x

x

  Health care and medication consumption (FIMA, CSSRI-D)

x

x

x

x

  Employment status^a

x

x

x

x

x

  Days of incapacity to work (DEGS)

x

x

x

x

  Functional capability, activity and participation (WHODAS 2.0)

x

x

x

x

x

  General state of health (DEGS)

x

x

x

x

x

  Perceived expressed emotion (FEF)

x

x

x

  Perceived criticism (PCS)

x

x

x

  Adverse events^a/IG

x

x

  Clinical characteristics^a

x

  Demographic information^a

x

 Relative-related

  Psychosocial burden (SCL-K-9)

x

x

x

x

x

  Disease-related burden (IEQ-EU)

x

x

x

x

x

  General state of health (DEGS)

x

x

x

x

x

  Problem-solving competency (SPSI-R-S)

x

x

x

  Implementation of problem-solving^a

x

x

x

  Depression literacy (D-Lit)^a

x

x

  Control attributions (IPQS-R)

x

x

x

  Expressed emotion (FQ)

x

x

x

  Health care utilisation (FIMA)

x

x

x

x

x

  Employment status^a

x

x

x

x

x

  Acceptance and subjective benefit of the intervention^a/IG

x

  Adverse Events^a/IG

x

x

  Demographic information^a

x