title: Validation and comparison of models predicting survival following intracerebral hemorrhage.
abstract: OBJECTIVE
  To compare the performance of two previously reported logistic regression models using data independent from those data used to derive the models.
  
  
  METHODS
  Prospective.
  
  
  METHODS
  Acute stroke unit of a tertiary care hospital.
  
  
  METHODS
  One hundred twenty-nine patients with supratentorial intracerebral hemorrhage.
  
  
  RESULTS
  Model 1 contains the initial Glasgow Coma Scale score, hemorrhage size, and pulse pressure. The more complex model 2 includes, in addition to those three variables, the presence or absence of intraventricular hemorrhage and a term representing the interaction of intraventricular hemorrhage and Glasgow Coma Scale score. The areas under the receiver operating characteristic curves generated for each model were statistically indistinguishable.
  
  
  CONCLUSIONS
  Model 1 predicts 30-day patient status as well as the more complex model 2. Model 1 provides a valid, easy-to-use means of categorizing supratentorial intracerebral hemorrhage patients in terms of their probability of survival.
authors.affiliation: Department of Neurology, Mount Sinai School of Medicine, New York, NY 10029-6574, USA.
authors.forename: S
authors.initials: S
authors.lastname: Tuhrim
authors.forename: D R
authors.initials: DR
authors.lastname: Horowitz
authors.forename: M
authors.initials: M
authors.lastname: Sacher
authors.forename: J H
authors.initials: JH
authors.lastname: Godbold
mesh_terms: D002543:Cerebral Hemorrhage / Q000401:mortality*; D015600:Glasgow Coma Scale; D006801:Humans; D016015:Logistic Models; D015233:Models, Statistical; D009519:New York City / Q000453:epidemiology; D011379:Prognosis; D011446:Prospective Studies; D012372:ROC Curve; D015203:Reproducibility of Results; D012307:Risk Factors; D016019:Survival Analysis