Home Oxygen After Hospitalization for COVID-19: Results From the Multi-Center OXFORD Study

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.

Drs Freedman and Kaul are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Kim, Labedz, and Taylor and Ms Ziauddin are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Kaur and Vines and Mr Rintz are affiliated with Division of Respiratory Care, Department of Cardiopulmonary Sciences, Rush University, Chicago, Illinois. Dr Jain is affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Division of Hospital Medicine, Department of Medicine, Northwestern University, Chicago, Illinois. Dr Adegunsoye is affiliated with Section of Pulmonary Critical and Critical Care, Department of Medicine, University of Chicago, Chicago, Illinois. Dr Chung and Ms DeLisa are affiliated with Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois. Ms Gardner is affiliated with Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gordon and Khouzam are affiliated with Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Academic Internal Medicine and Geriatrics, Department of Medicine, University of Illinois Chicago, Chicago, Illinois. Drs Greenberg and Mokhlesi are affiliated with Division Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Rush University, Chicago, Illinois. Dr Rubinstein is affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; Medical Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois; and Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois. Drs Gerald and Krishnan are affiliated with Division of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois Chicago, Chicago, Illinois; and Office of Population Health Sciences, University of Illinois Hospital and Health Sciences System, Chicago, Illinois.