Reply to Letter to Editor by Ahmed HS, et al re: Possibility of Age and Prior Psychiatric Illnesses Affecting the Study Design

Affiliations

• ¹ Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD. Electronic address: [email protected].
• ² Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD; Outcomes After Critical Illness and Surgery (OACIS) Research Group, Johns Hopkins University School of Medicine, Baltimore, MD.
• ³ Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD; Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD; Johns Hopkins University School of Nursing, Baltimore, MD.