JAMA : the journal of the American Medical Association
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To develop and validate a clinical prediction rule for postoperative delirium using data available to clinicians preoperatively. ⋯ Using data available preoperatively, clinicians can stratify patients into risk groups for the development of delirium. Since delirium is associated with a variety of adverse outcomes, patients with substantial risk for this complication could be candidates for interventions to reduce the incidence of postoperative delirium and potentially improve overall surgical outcomes.