Sleep disturbances and the speed of multimorbidity development in old age : results from a longitudinal population-based study - Sindi, Shireen (Imperial College London. Neuroepidemiology and Ageing Research Unit, School of Public Health) ; Pérez, Laura Mónica (Hospital Universitari Vall d'Hebron) ; Vetrano, Davide L. (Centro di Medicina dell'Invecchiamento, IRCCS Fondazione Policlinico "A. Gemelli" and Catholic University of Rome) ; Triolo, Federico (Karolinska Institutet and Stockholm University. Aging Research Center, Department of Neurobiology, Care Sciences and Society) ; Kåreholt, Ingemar (Jönköping University. Institute of Gerontology, School of Health and Welfare, Aging Research Network - Jönköping (ARN-J)) ; Sjöberg, Linnea (Karolinska Institutet and Stockholm University. Aging Research Center, Department of Neurobiology, Care Sciences and Society) ; Darin-Mattsson, Alexander (Karolinska Institutet and Stockholm University. Aging Research Center, Department of Neurobiology, Care Sciences and Society) ; Kivipelto, Miia (Stockholms Sjukhem. Research and Development Unit) ; Inzitari, Marco (Universitat Autònoma de Barcelona. Departament de Medicina) ; Calderón-Larrañaga, Amaia (Karolinska Institutet and Stockholm University. Aging Research Center, Department of Neurobiology, Care Sciences and Society)