title: Reply to the editor.
authors.affiliation: Department of Anesthesia and Perioperative Medicine, University of Manitoba Faculty of Medicine, Winnipeg, Manitoba, Canada.
authors.forename: Benjamin G
authors.initials: BG
authors.lastname: Arenson
authors.affiliation: University of Manitoba Faculty of Medicine, Winnipeg, Manitoba, Canada.
authors.forename: Lindsey A
authors.initials: LA
authors.lastname: Macdonald
authors.affiliation: Department of Anesthesia and Perioperative Medicine, University of Manitoba Faculty of Medicine, Winnipeg, Manitoba, Canada.
authors.forename: Hilary P
authors.initials: HP
authors.lastname: Grocott
authors.affiliation: Cardiac Sciences Program, Winnipeg Regional Health Authority, Winnipeg, Manitoba, Canada.
authors.forename: Brett M
authors.initials: BM
authors.lastname: Hiebert
authors.affiliation: Departments of Anesthesia and Perioperative Medicine and Surgery, University of Manitoba Faculty of Medicine, Winnipeg, Manitoba, Canada.
authors.forename: Rakesh C
authors.initials: RC
authors.lastname: Arora
mesh_terms: D006348:Cardiac Surgical Procedures; D003693:Delirium / Q000453:epidemiology* / Q000209:etiology*; D005260:Female; D006801:Humans; D007362:Intensive Care Units; D008297:Male; D011183:Postoperative Complications / Q000453:epidemiology* / Q000209:etiology*