title: Validation of the good outcome following attempted resuscitation score on in-hospital cardiac arrest in southern Sweden.
abstract: BACKGROUND
  There is a great need for a simple and clinically useful instrument to help physicians estimate the probability of survival to discharge with a good neurological outcome (cerebral performance category, CPC=1) in cases of in-hospital cardiac arrest (IHCA). Our aim was to validate the "Good Outcome Following Attempted Resuscitation" (GO-FAR) score in a different country with different demographics than previously investigated.
  
  
  METHODS
  A retrospective observational study including all cases of IHCA who were part of a cardiac arrest registry at Skåne University Hospital in Sweden 2007-2010.
  
  
  RESULTS
  Two-hundred-eighty-seven patients suffered IHCA during the period. A majority were male and mean age was 70years. Overall survival to discharge independent of neurological function was 20.2%; 78% of the survivors had CPC=1 and survival to discharge with CPC=1 was 15.7%. The area under the receiver operating characteristics curve for the GO-FAR score was 0.85 (CI=0.78-0.91, p<0.001), consistent with very good discrimination. Patients in the group with low or very low probability of survival had a likelihood of 2.8% (95% CI 0.0-6.7), whereas the groups with average and above average probabilities had likelihoods of 8.2% (3.7-13) and 46% (34-58), respectively, for good neurological outcome. This compares with likelihoods of 1.6%, 9.2% and 27.8% in the original study.
  
  
  CONCLUSIONS
  The GO-FAR score accurately predicted the probability of survival to discharge with CPC=1, even when applied to a different population in another country.
authors.affiliation: Department of Internal Medicine, Skåne University Hospital, Malmö, Sweden. Electronic address: Marcus.ohlsson@med.lu.se.
authors.forename: Marcus Andreas
authors.initials: MA
authors.lastname: Ohlsson
authors.affiliation: Department of Internal Medicine, Skåne University Hospital, Malmö, Sweden.
authors.forename: Linn Maria
authors.initials: LM
authors.lastname: Kennedy
authors.affiliation: Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, Athens, USA.
authors.forename: Mark H
authors.initials: MH
authors.lastname: Ebell
authors.affiliation: Department of Cardiology, Lund University, Malmö, Sweden.
authors.forename: Tord
authors.initials: T
authors.lastname: Juhlin
authors.affiliation: Department of Clinical Sciences, Lund University, Malmö, Sweden.
authors.forename: Olle
authors.initials: O
authors.lastname: Melander
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D016887:Cardiopulmonary Resuscitation / Q000401:mortality / Q000592:standards* / Q000639:trends*; D005260:Female; D006323:Heart Arrest / Q000453:epidemiology* / Q000401:mortality / Q000628:therapy*; D006760:Hospitalization / Q000639:trends*; D006801:Humans; D008297:Male; D012042:Registries; D012189:Retrospective Studies; D015996:Survival Rate / Q000639:trends; D013548:Sweden / Q000453:epidemiology; D016896:Treatment Outcome
keywords: Cardiac arrest; Cardiopulmonary resuscitation; Cerebral performance category; IHCA; Survival score