The main objective of the study is to describe function and health related to quality of life during the first year after rehabilitation, to measure the degree and impact of user involvement in the rehabilitation process, assess factors associated with change in work -ability and -participation, and to test measurement properties of a new core set of outcome measures for rehabilitation launched by the Norwegian Directorate of Health.

This is a large multicentre cohort study including patients receiving rehabilitation at 17 rehabilitation centres from Norway, *the RehabNytte Consortium. Invitation and registration of participants will be conducted by local project coordinators in the period between 01.01.2019 and 31.03.2020.

All participants will receive rehabilitation as usual at each centre, and report HRQoL, health and function (by PROMS) through a digital self-reporting system at admission, discharge and after 3, 6 and 12 months.

This study seeks to answer several research questions related to the overarching areas:

1. Patient reported change of function, health and quality of life during the first year after rehabilitation
2. Degree of user involvement in rehabilitation
3. Change in work -ability and -participation
4. Quality assessment (use of Quality indicator set)
5. Measurement characteristics (feasibility and responsiveness) of recommended PROMS in rehabilitation

Inclusion Criteria:

• Patients that participates in inpatient or outpatient rehabilitation programs at one of the participating centers.
• Age over 18 years
• Access to internet at home
• Access to personal secure login with BANK ID.

Exclusion Criteria:

• Severely reduced cognitive function
• severe mental illness with inadequate consent competence ability to participate
• Insufficient understanding of Norwegian written language.

• Patients receiving rehabilitation at seventeen rehabilitation centres in specialist care (all health regions)
• All diagnoses, with largest groups of musculoskeletal diseases, neurological conditions (stroke, MS), cancer, and heart- and lunge conditions.

Participating centres will have access to de-identificated IPD after the data collection period is completed. Data will only be shared with other researchers after approval by the steering committee, and in line with the purposes of the project.