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Table 3 Dyspnea and other results for O2 users and O2 non-users among subjects whose nadir SpO2 was < 89 %

From: Supplemental oxygen users with pulmonary fibrosis perceive greater dyspnea than oxygen non-users

  O2 (N = 439) No O2 (N = 252) P
6MWD (feet) 1051 ± 382.7 1415.1 ± 370.5 <0.0001
BMI 30.2 ± 6.8 28.8 ± 5.2 0.003
Borg Dyspnea 4.3 ± 2.0 3.4 ± 1.7 <0.0001
Borg Exertion* 3.5 ± 2.1 2.7 ± 1.8 <0.0001
HR baseline 80.4 ± 13.7 78.2 ± 13.3 0.04
HR at 6 min 112.3 ± 16.0 112.9 ± 16.2 0.62
HR rise 31.9 ± 14.8 34.7 ± 15.3 0.02
SpO2 baseline 97.2 ± 2.0 94.6 ± 1.7 <0.0001
SpO2 at 6 min 85.3 ± 3.5 86.0 ± 3.2 0.02
SpO2 drop 11.8 ± 4.1 8.6 ± 3.3 <0.0001
  1. Values are mean and standard deviation; 6MWD distance walked during six-minute walk test (6MWT), O2 completed 6MWT using supplemental oxygen, No O2 completed 6MWT without using supplemental oxygen, SpO2 peripheral oxygen saturation; *N = 355 for O2 users and 204 for non-users