1 Department of Physical Medicine and Rehabilitation, Johns Hopkins School of Medicine, 600 North Wolfe Street, Phipps 179, Baltimore, MD, 21287, USA.
2 Outcomes After Critical Illness and Surgery (OACIS) Group, Johns Hopkins School of Medicine, Baltimore, MD, USA.
3 Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA.
4 Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
5 Division of Pulmonary and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA.
6 Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
7 Neuroscience Center and Psychology Department, Brigham Young University, Provo, UT, USA.
8 Department of Medicine, Pulmonary and Critical Care Medicine, Intermountain Health Care, Murray, UT, USA.
9 Department of Physical Medicine and Rehabilitation, Johns Hopkins School of Medicine, 600 North Wolfe Street, Phipps 179, Baltimore, MD, 21287, USA. Dale.needham@jhmi.edu.
10 Outcomes After Critical Illness and Surgery (OACIS) Group, Johns Hopkins School of Medicine, Baltimore, MD, USA. Dale.needham@jhmi.edu.
11 Division of Pulmonary and Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA. Dale.needham@jhmi.edu.