Data collection methods
SECONDARY
For the independent evaluation, data from ASHIP and the health insurance fund will be used for primary and secondary endpoints. To fill in missing data, such as hospital visits for patients with other health insurance, APNs collect health-related data and document patients' emergency and routine visits to any health-related facility (doctor's office, hospital, emergency room). The health insurer provides a data pool for control group matching. All data are transferred to the IMBEI in pseudonymized form. Patients, GPs, and APNs are informed by mailed invitations about the possibility of interview participation and asked to complete a feedback form. Potential interviewees are called via the feedback form, and appointments are made. The qualitative interviews are conducted by telephone using a previously prepared standardized interview guide. There is a separate guide for each interview group, which is finalized after piloting. Interviews are audio recorded and transcribed verbatim.As part of the internal evaluation, the health status of each participating patient was measured before (t0) and at the end of the patient-individual intervention phase (t1) using the assessment instruments mentioned in the intervention section above as we use the data from these instruments for care and research purposes. Their psychometric data are as follows: DemTect: interrater reliability For the internal evaluation of patients’ satisfaction with APN care, a standardized questionnaire is used before and at the end of the patient-individual intervention phase. We take the APN-BQ (Advanced Practice Nurse- counselling quality) questionnaire and modify it for project-specific concerns. The APN-BQ aims to measure the quality of advanced practice nurse counselling in home care settings. The APN-BQ has shown itself to be a reliable instrument with good content and construct validity. The value is α = 0.86 [