A Core Outcome Set for Multimorbidity Research (COSmm)

1HRB Centre for Primary Care Research, Department of General Practice, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland

1HRB Centre for Primary Care Research, Department of General Practice, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland

2Centre for Academic Primary Care, NIHR School for Primary Care Research, School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom

3Department of Health Sciences Research, Research Chair on Chronic Diseases in Primary Care, Chicoutimi (Quebec), Canada

4Institute for Health Research, Kaiser Permanente Colorado, University of Colorado School of Medicine, Denver, Colorado

5Département de médecine de famille, Université de Sherbrooke, Sherbrooke (Québec), Canada