The PaO2/FIO2 Ratio Categorization of Patients With Acute Respiratory Distress Syndrome Is Suboptimal*Lanspa, Michael J. MD; Morris, Alan H. MDCritical Care Medicine: February 2015 - Volume 43 - Issue 2 - p 488–489 doi: 10.1097/CCM.0000000000000816 Editorials Buy Author InformationAuthors Article MetricsMetrics Pulmonary and Critical Care Division, Department of Medicine, Intermountain Medical Center and University of Utah School of Medicine, Salt Lake City, UT * See also p. 346. Dr. Morris’ institution received grant support from the National Institutes of Health (NIH/National Heart, Lung, and Blood Institute Acute Respiratory Distress Syndrome Network funding). Dr. Lanspa has disclosed that he does not have any potential conflicts of interest. Drs. Lanspa and Morris participated in the conceptualization and design, data acquisition, analysis, and interpretation. They participated in drafting the work and revising it for important intellectual content. They approved the final version and are accountable for all aspects of the work including accuracy and integrity. Copyright © by 2015 by the Society of Critical Care Medicine and Wolters Kluwer Health, Inc. All Rights Reserved.