title: On the power of a method for comparing survival of trauma patients to a standard survival curve.
abstract: This paper investigates the power of a statistical procedure for comparing a unit's survival experience to a standard survival curve. The power of the statistical procedure provides a measure of how sensitive the test is to departures from the nominal values provided by the standard survival curve. This procedure has been used recently in a number of evaluation of care studies. A power study for thirty-two adult blunt trauma patients, contributed by a participating hospital to a national data base collected at Washington Hospital Center, is detailed.
mesh_terms: D006801:Humans; D008954:Models, Biological; D012016:Reference Values; D014947:Wounds and Injuries / Q000401:mortality*