1. Department of Community Medicine and Rehabilitation, Occupational Therapy, Umeå University, 901 87 Umeå, Sweden
2. Umeå University, Ageing and Living Conditions Program, 901 87 Umeå, Sweden
3. Faculty of Education and Welfare Studies, Social Policy Unit, Åbo Akademi University, 651 01 Vasa, Finland
4. Department of Community Medicine and Rehabilitation, Geriatric Medicine, Umeå University, 901 87 Umeå, Sweden