Logistic earlywarning scores to predict death, cardiac arrest or unplanned intensive care unit re-admission after cardiac surgery

1 Statistician, 6 Senior Analyst, Clinical Governance, 7 Consultant, Department of Anaesthesia and Intensive Care, Royal Papworth Hospital, Cambridge, UK 2 Statistician,MRCBiostatistics Unit, School of ClinicalMedicine, University of Cambridge, UK 3Consultant, Department of Anaesthesia andCritical Care, JamesCookUniversity Hospital, Middlesbrough, UK 4Consultant, Department of Anaesthesia andCritical Care, University Hospitals Coventry andWarwickshire, Coventry, UK 5Consultant, Department of Anaesthesia andCritical Care, NewCross Hospital,Wolverhampton, UK