Methods: Fifty-one patients (37 males, 14 females; mean age 53±12 years) with SRBD confirmed by polysomnography and 49 healthy controls (23 males, 26 females, mean age 43±12 years) without SRBD, filled the Greek version of the MOS Sleep Scale questionnaire. Statistical analysis was done by calculating its internal consistency using Cronbach’s alpha.
Results: Cronbach’s alpha for the MOS subcategories in the test sample was 0.82 to 0.88, which is considered to be very satisfactory. Patients with respiratory disorders had fewer sleep hours, episodes of daytime sleepiness, delayed sleep onset and reduced sleep adequacy (p<0.05).
Conclusions: Patients with SRBD have poorer sleep. The MOS Sleep Scale in patients with SRBD in the Greek population showed very satisfactory reliability. Therefore, the MOS Sleep Scale can be a useful assessment tool.
Keywords: Respiratory sleep disorders; quality of life; medical outcomes study sleep scale (MOS sleep scale)