Table 1 shows the group demographics and respiratory function parameters. The FEV 1 /FVC ratio and the FEV 1 were below the lower limit of normal for all participants. The cabin environment is ...

People with obstructive sleep apnea (OSA) typically have low oxygen levels when they sleep because of gaps in their breathing. Blood oxygen during sleep is considered low if levels are below 95%.

Background: Limited data are available comparing air travel with the hypoxia inhalation test (HIT ... capability of the HIT to in-flight hypoxemia in passengers with COPD. Methods: Thirteen ...