[1] University of Bergen,Department of Clinical Medicine
[2] Haukeland University Hospital,Department of Anaesthesia and Intensive Care
[3] University Utrecht,Department of Intensive Care Medicine, University Medical Center
[4] Department of Rehabilitation Hospital Ancelle di Cremona,Department of Anaesthesia and Intensive Care
[5] Geriatric Research Group,Department of Circulation and Medical Imaging
[6] Ålesund Hospital,Department of Intensive Care Medecine, CIBER Enfermedades Respiratorias
[7] NTNU,Department of Anaesthesia and Intensive Care Medicine
[8] Corporacion Sanitaria Universitaria Parc Tauli,Laboratorio di Epidemiologia Clinica, Centro di Coordinamento GiViTI Dipar timento di Salute Pubblica
[9] Autonomous University of Barcelona,Unite de Recherche en Epidemiologie Systemes d’Information et Mode lisation U707
[10] Aarhus University Hospital,Department of Cardiology, Pulmonology and Angiology
[11] IRCCS-Istituto di Ricerche Farmacologiche “Mario Negri”,Department of Intensive Care 1K12IC
[12] Institut national de la sante et de la recherche medicale,Department of Intensive Care, University Medical Center
[13] St George’s University Hospital,Intensive Care and Perioperative Medicine Division
[14] Grande Ospedale Metropolitano Niguarda,undefined
[15] University Hospital,undefined
[16] Mater Misericordiae University Hospital,undefined
[17] Unidade de Cuidados Intensivos Neurocríticos,undefined
[18] Hospital de São José,undefined
[19] Centro Hospitalar de Lisboa Central,undefined
[20] Faculdade de Ciência Médicas de Lisboa,undefined
[21] Nova Médical School,undefined
[22] Ghent University Hospital,undefined
[23] Karolinska University Hospital,undefined
[24] Geneva University Hospitals,undefined
[25] University Utrecht,undefined
[26] Jagiellonian University Medical College,undefined
[27] Kardinal Schwarzenberg Hospital,undefined
[28] Intensive Care Unit General Hospital of Larissa Tsakalof,undefined
[29] Assistance Publique-Hôpitaux de Paris,undefined
[30] Hôpital Saint-Antoine,undefined
[31] service de réanimation médicale,undefined
[32] Sorbonne Universités,undefined
[33] UPMC Univ Paris 06,undefined
[34] Institut Pierre Louis d’Epidémiologie et de Santé Publique,undefined
[35] INSERM,undefined
[36] Institut Pierre Louis d’Epidémiologie et de Santé Publique,undefined