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Table 1 Details of 34 patients who completed the trial

From: A crossover study of short burst oxygen therapy (SBOT) for the relief of exercise-induced breathlessness in severe COPD

  Mean Standard Deviation Range
Age (years) 67.5 8.9 52-87
FEV1 (liters) 0.80 0.2 0.45-1.3
FEV1 as %predicted 31.4% 5.5 21-39
Number of steps climbed 35.0 18.2 7-115
Exercise time (seconds) 93.9 43.1 23-180
SpO2at rest 95.0 1.3 92-98
SpO2 at end of exercise 91.3 3.8 79-97
Pulse at rest 86.1 12.4 51-117
Pulse at end of exercise 103 17.8 57-145
Borg score at rest 1.5 1.1 0-4
Borg score at end of exercise 5.1 1.6 2-9
  1. (24 male, 10 female; 4 current smokers, 30 ex-smokers)