1. Department of Nursing, Umeå University, S-90187, Umeå, Sweden, HeartNet, Skeria 4, S-93177, Skellefteå, Sweden
margareta.brannstrom@nurs.umu.se inger.ekman@fhs.gu astrid.norberg@nurs.umu.se kurt.boman@medforskskelet.se gunilla.strandberg@nurs.umu.se
2. Institute of Nursing, Sahlgrenska Academy at Göteborg University, Box 457, S-40530 Göteborg, Sweden
3. Department of Nursing, Umeå University, S-90187, Umeå, Sweden
4. HeartNet, Skeria 4, S-93177, Skellefteå, Sweden, Department of Medicine-Geriatric, S-93186, Skellefteå County Hospital, Sweden, Department of Public Health and Clinical Medicine, Umeå University, S-90187, Umeå, Sweden