Methods
The study is designed as a two-arm, pragmatic 1:1 randomised controlled study (RCT), which will be conducted in about 20 general practices in the German states of Berlin and Brandenburg. Patients (Primary outcome is the proportion of applications for prevention or rehabilitation services financed by the German Pension Insurance. Administrative data will be provided for this purpose. Secondary outcomes include the proportion of approved applications and completed services. In addition, the proportion of persons with a need for prevention or rehabilitation according to the “check-up 45 + ” will be examined. Semi-structured interviews will be conducted and content-analysed to determine the practicability and acceptance of the “check-up 45 + ” by the relevant stakeholders.