1. Department of Geriatric Medicine, Aalborg University Hospital and Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
2. Department of Geriatric Medicine, Odense University Hospital, Odense, Denmark
3. Geriatric Research Unit, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
4. Unit of Clinical Biostatistics, Aalborg University Hospital, Aalborg, Denmark
5. Department of Health Sciences and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark