title: Use of an international data bank to compare outcome following severe head injury in different centres.
abstract: The advantages and drawbacks of basing treatment comparisons on observational data are discussed. Recommendations are made for minimizing bias when basing comparisons on computerized data banks. A specific example is given concerning treatment following severe head injury.
mesh_terms: D001699:Biometry; D002986:Clinical Trials as Topic; D006259:Craniocerebral Trauma / Q000628:therapy*; D006801:Humans; D007256:Information Systems; D011379:Prognosis; D011897:Random Allocation