1. Department of Public Health and Caring Sciences, Section of Clinical Geriatrics, Uppsala University, Uppsala, Sweden
2. Department of Statistics, Umeå School of Business, Economics and Statistics, Umeå University, Umeå, Sweden
3. Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
4. Department of Clinical Microbiology, Umeå University, Umeå, Sweden
5. Department of Medical Sciences, Acute and Internal Medicine, Uppsala University, Uppsala, Sweden
6. Department of Community Medicine and Rehabilitation, Division of Geriatic Medicine, Umeå University, Umeå, Sweden
7. Wallenberg Centre for Molecular Medicine, Umeå University, Umeå, Sweden