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Table 1 Overview of treatment arms

From: Baden Prevention and Reduction of Incidence of Postoperative Delirium Trial (PRIDe): a phase IV multicenter, randomized, placebo-controlled, double-blind clinical trial of ketamine versus haloperidol for prevention of postoperative delirium

Treatment arms Assigned interventions
Active comparator: haloperidol Haloperidol 0.005 mg/kg body weight at induction of anaesthesia
Active comparator: ketamine Ketamine 1 mg/kg body weight at induction of anaesthesia
Active comparators: haloperidol + ketamine in combination Haloperidol 0.005 mg/kg body weight + ketamine 1 mg/kg body weight at induction of anaesthesia
Placebo comparator Normal saline (NaCl 0.9%)