1. Department of Nursing; Umeå University; Sweden
2. Department of Statistics; Umeå School of Business and Economics; Umeå University; Sweden
3. Epidemiology and Global Health; Department of Public Health and Clinical Medicine; Umeå University; Sweden
4. Division of Neurogeriatrics; Department of Neurobiology; Care sciences and Society; Karolinska Institutet; Huddinge Sweden
5. Lovisenberg Diaconal University College; Oslo Norway
6. School of Nursing and Midwifery; La Trobe University; Melbourne Australia