Table 1 Different domains of the multiperspective evaluation study

Process evaluation

focus groups

participating physicians

annual, during the intervention phase

monitoring and coordination assistants

semi- structured interviews

demand management

care management

management consultancy

once after the implementation

Outcome evaluation

primary data

questionnaire of participating physicians (n ~ 40)

two time-points during the intervention phase

questionnaire of participating practice staff (n ~ 160)

questionnaire of participating patients (t0: n ~ 2460; t0 & t1: n ~ 1500)

questionnaire of non-participating physicians within the physician’s network (n ~ 60)

one time-point during the intervention phase

secondary data

statutory health insurance claim data (group 1: n ~ 1.975; group 2: n ~ 2524)

during and at the end of the intervention phase

RGL- process data