Disclosure StatementThis is not an industry supported study. Drs. Catcheside, Mercer, McEvoy, Lehman, Antic, and Thompson have indicated no financial conflicts of interest.

Despite having a significantly "stickier" upper airway, patients with primary Sjögren's syndrome do not appear to have abnormal upper airway collapsibility, at least as determined from upper airway collapsibility index.

Abdominal compression negatively impacts on UA collapsibility during sleep and this effect may help explain strong associations between central obesity and obstructive sleep apnea.