Volume 102, Issue 3, Pages (September 1992)

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Volume 102, Issue 3, Pages 694-698 (September 1992) Comparison of Six Oxygen Delivery Systems for COPD Patients at Rest and during Exercise Sheldon R. Braun, M.D., F.C.C.P., Ginger Spratt, R.R.T., Graham C. Scott, M.D., F.C.C.P., Mark Ellersieck, Ph.D. CHEST Volume 102, Issue 3, Pages 694-698 (September 1992) DOI: 10.1378/chest.102.3.694 Copyright © 1992 The American College of Chest Physicians Terms and Conditions

Figure 1 The total number of seconds during the 12-min walk the subjects desaturated to <88 percent for each of the devices studied for each subject is represented by the fine lines while the mean of the 10 subject responses is represented by the bold line. The D unit produced significantly lower desaturation times when compared with continuous flow (p<0.02) and device E (p<0.04). CHEST 1992 102, 694-698DOI: (10.1378/chest.102.3.694) Copyright © 1992 The American College of Chest Physicians Terms and Conditions

Figure 2 The total distance walked during the 12 min for each subject for each device tested is represented by the fine lines while the mean of all the subjects is represented by the bold line. The D unit produced significantly lower distances when compared with the E unit (p<0.05) and continuous flow (p<0.04). CHEST 1992 102, 694-698DOI: (10.1378/chest.102.3.694) Copyright © 1992 The American College of Chest Physicians Terms and Conditions