1. Center for Health Care Improvement, St. Olav's Hospital HF Trondheim University Hospital Trondheim Norway
2. Department of Mathematical Sciences Norwegian University of Science and Technology Trondheim Norway
3. Department of Geriatric Medicine, Clinic of Medicine, St. Olav's Hospital HF Trondheim University Hospital Trondheim Norway
4. Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Science Norwegian University of Science and Technology Trondheim Norway
5. Department of Public Health and Nursing Norwegian University of Science and Technology PO Box 8905 Trondheim 7491 Norway
6. Department of Health Research SINTEF Digital Trondheim Norway
7. Department of Economics Norwegian University of Science and Technology Trondheim Norway
8. Faculty of Nursing and Health Sciences Nord University Levanger Norway